625161212650 has 24 divisors (see below), whose sum is σ = 1252245999564. Its totient is φ = 230828755200.

The previous prime is 625161212629. The next prime is 625161212653. The reversal of 625161212650 is 56212161526.

It can be written as a sum of positive squares in 6 ways, for example, as 51023129689 + 574138082961 = 225883^2 + 757719^2 .

It is not an unprimeable number, because it can be changed into a prime (625161212653) 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, 480892591 + ... + 480893890.

Almost surely, 2^625161212650 is an apocalyptic number.

625161212650 is an abundant number, since it is smaller than the sum of its proper divisors (627084786914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625161212650 is a wasteful number, since it uses less digits than its factorization.

625161212650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961786506 (or 961786501 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 625161212650 in words is "six hundred twenty-five billion, one hundred sixty-one million, two hundred twelve thousand, six hundred fifty".