655564506125 has 64 divisors (see below), whose sum is σ = 885641065920. Its totient is φ = 483380352000.

The previous prime is 655564506097. The next prime is 655564506131. The reversal of 655564506125 is 521605465556.

It can be written as a sum of positive squares in 32 ways, for example, as 530884189924 + 124680316201 = 728618^2 + 353101^2 .

It is not a de Polignac number, because 655564506125 - 2²⁸ = 655296070669 is a prime.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7062515 + ... + 7154735.

It is an arithmetic number, because the mean of its divisors is an integer number (13838141655).

Almost surely, 2^655564506125 is an apocalyptic number.

It is an amenable number.

655564506125 is a deficient number, since it is larger than the sum of its proper divisors (230076559795).

655564506125 is a wasteful number, since it uses less digits than its factorization.

655564506125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92355 (or 92345 counting only the distinct ones).

The product of its (nonzero) digits is 5400000, while the sum is 50.

The spelling of 655564506125 in words is "six hundred fifty-five billion, five hundred sixty-four million, five hundred six thousand, one hundred twenty-five".