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1053223225 = 5242128929
BaseRepresentation
bin111110110001101…
…110100100111001
32201101211021122121
4332301232210321
54124111120400
6252302121241
735046151435
oct7661564471
92641737577
101053223225
114a057621a
12254880221
1313a283712
149dc439c5
15626e621a
hex3ec6e939

1053223225 has 6 divisors (see below), whose sum is σ = 1305996830. Its totient is φ = 842578560.

The previous prime is 1053223217. The next prime is 1053223229. The reversal of 1053223225 is 5223223501.

It can be written as a sum of positive squares in 3 ways, for example, as 18249984 + 1034973241 = 4272^2 + 32171^2 .

It is not a de Polignac number, because 1053223225 - 23 = 1053223217 is a prime.

It is a super-2 number, since 2×10532232252 = 2218558323358801250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 42128929 = 1053223225 / (1 + 0 + 5 + 3 + 2 + 2 + 3 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1053223225.

It is not an unprimeable number, because it can be changed into a prime (1053223229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21064440 + ... + 21064489.

Almost surely, 21053223225 is an apocalyptic number.

It is an amenable number.

1053223225 is a deficient number, since it is larger than the sum of its proper divisors (252773605).

1053223225 is an equidigital number, since it uses as much as digits as its factorization.

1053223225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42128939 (or 42128934 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1053223225 is about 32453.4008233344. The cubic root of 1053223225 is about 1017.4353179649.

Adding to 1053223225 its reverse (5223223501), we get a palindrome (6276446726).

The spelling of 1053223225 in words is "one billion, fifty-three million, two hundred twenty-three thousand, two hundred twenty-five".

Divisors: 1 5 25 42128929 210644645 1053223225