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125611225 = 5231162079
BaseRepresentation
bin1110111110010…
…10110011011001
322202100201012121
413133022303121
5224124024400
620244141241
73053451325
oct737126331
9282321177
10125611225
11649a4633
1236097821
132003cc8c
141297a985
15b06321a
hex77cacd9

125611225 has 12 divisors (see below), whose sum is σ = 160783360. Its totient is φ = 97246800.

The previous prime is 125611207. The next prime is 125611229. The reversal of 125611225 is 522116521.

It is not a de Polignac number, because 125611225 - 27 = 125611097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 125611225.

It is not an unprimeable number, because it can be changed into a prime (125611229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80265 + ... + 81814.

Almost surely, 2125611225 is an apocalyptic number.

It is an amenable number.

125611225 is a deficient number, since it is larger than the sum of its proper divisors (35172135).

125611225 is a wasteful number, since it uses less digits than its factorization.

125611225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162120 (or 162115 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 125611225 is about 11207.6413664963. The cubic root of 125611225 is about 500.8136419221.

Adding to 125611225 its reverse (522116521), we get a palindrome (647727746).

The spelling of 125611225 in words is "one hundred twenty-five million, six hundred eleven thousand, two hundred twenty-five".

Divisors: 1 5 25 31 155 775 162079 810395 4051975 5024449 25122245 125611225