625038156625 has 16 divisors (see below), whose sum is σ = 780275375568. Its totient is φ = 499884528000.

The previous prime is 625038156623. The next prime is 625038156629. The reversal of 625038156625 is 526651830526.

It can be written as a sum of positive squares in 8 ways, for example, as 351108391936 + 273929764689 = 592544^2 + 523383^2 .

It is not a de Polignac number, because 625038156625 - 2¹ = 625038156623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625038156623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299146 + ... + 1157395.

It is an arithmetic number, because the mean of its divisors is an integer number (48767210973).

Almost surely, 2^625038156625 is an apocalyptic number.

It is an amenable number.

625038156625 is a deficient number, since it is larger than the sum of its proper divisors (155237218943).

625038156625 is a wasteful number, since it uses less digits than its factorization.

625038156625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459989 (or 1459979 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 49.

It can be divided in two parts, 62503 and 8156625, that added together give a palindrome (8219128).

The spelling of 625038156625 in words is "six hundred twenty-five billion, thirty-eight million, one hundred fifty-six thousand, six hundred twenty-five".