625764680 has 48 divisors (see below), whose sum is σ = 1471897980. Its totient is φ = 239414912.

The previous prime is 625764641. The next prime is 625764691. The reversal of 625764680 is 86467526.

It can be written as a sum of positive squares in 2 ways, for example, as 578787364 + 46977316 = 24058^2 + 6854^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6374 + ... + 35946.

Almost surely, 2^625764680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625764680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735948990).

625764680 is an abundant number, since it is smaller than the sum of its proper divisors (846133300).

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

625764680 is a wasteful number, since it uses less digits than its factorization.

625764680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29630 (or 29603 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 625764680 is about 25015.2889249755. The cubic root of 625764680 is about 855.3365204044.

The spelling of 625764680 in words is "six hundred twenty-five million, seven hundred sixty-four thousand, six hundred eighty".