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1225070553 = 3758336693
BaseRepresentation
bin100100100000101…
…0001011111011001
310011101012000212110
41021001101133121
510002104224203
6321321302533
742233633160
oct11101213731
93141160773
101225070553
1157957a703
122a2334a49
13166a61825
14b89b83d7
157283dd03
hex490517d9

1225070553 has 8 divisors (see below), whose sum is σ = 1866774208. Its totient is φ = 700040304.

The previous prime is 1225070531. The next prime is 1225070579. The reversal of 1225070553 is 3550705221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1225070553 - 210 = 1225069529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1225070553.

It is not an unprimeable number, because it can be changed into a prime (1225070153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29168326 + ... + 29168367.

It is an arithmetic number, because the mean of its divisors is an integer number (233346776).

Almost surely, 21225070553 is an apocalyptic number.

It is an amenable number.

1225070553 is a deficient number, since it is larger than the sum of its proper divisors (641703655).

1225070553 is an equidigital number, since it uses as much as digits as its factorization.

1225070553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58336703.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 1225070553 is about 35001.0078854881. The cubic root of 1225070553 is about 1070.0080218923.

Adding to 1225070553 its reverse (3550705221), we get a palindrome (4775775774).

The spelling of 1225070553 in words is "one billion, two hundred twenty-five million, seventy thousand, five hundred fifty-three".

Divisors: 1 3 7 21 58336693 175010079 408356851 1225070553