625043125556 has 12 divisors (see below), whose sum is σ = 1093855549668. Its totient is φ = 312512968512.

The previous prime is 625043125549. The next prime is 625043125591. The reversal of 625043125556 is 655521340526.

It can be written as a sum of positive squares in 2 ways, for example, as 620811623056 + 4231502500 = 787916^2 + 65050^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1983521 + ... + 2276936.

It is an arithmetic number, because the mean of its divisors is an integer number (91154629139).

Almost surely, 2^625043125556 is an apocalyptic number.

It is an amenable number.

625043125556 is a deficient number, since it is larger than the sum of its proper divisors (468812424112).

625043125556 is a wasteful number, since it uses less digits than its factorization.

625043125556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297138 (or 4297136 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 625043125556 in words is "six hundred twenty-five billion, forty-three million, one hundred twenty-five thousand, five hundred fifty-six".