625507117061 has 8 divisors (see below), whose sum is σ = 628527411960. Its totient is φ = 622492846272.

The previous prime is 625507117043. The next prime is 625507117093. The reversal of 625507117061 is 160711705526.

It can be written as a sum of positive squares in 4 ways, for example, as 136248836161 + 489258280900 = 369119^2 + 699470^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625507117061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625507117021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1297790 + ... + 1713263.

It is an arithmetic number, because the mean of its divisors is an integer number (78565926495).

Almost surely, 2^625507117061 is an apocalyptic number.

It is an amenable number.

625507117061 is a deficient number, since it is larger than the sum of its proper divisors (3020294899).

625507117061 is a wasteful number, since it uses less digits than its factorization.

625507117061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012055.

The product of its (nonzero) digits is 88200, while the sum is 41.

The spelling of 625507117061 in words is "six hundred twenty-five billion, five hundred seven million, one hundred seventeen thousand, sixty-one".