625351680 has 264 divisors, whose sum is σ = 2226382704. Its totient is φ = 162201600.

The previous prime is 625351667. The next prime is 625351703. The reversal of 625351680 is 86153526.

625351680 is a `hidden beast` number, since 62 + 5 + 3 + 516 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1889115 + ... + 1889445.

Almost surely, 2^625351680 is an apocalyptic number.

625351680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625351680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1113191352).

625351680 is an abundant number, since it is smaller than the sum of its proper divisors (1601031024).

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

625351680 is a wasteful number, since it uses less digits than its factorization.

625351680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 625351680 is about 25007.0326108477. The cubic root of 625351680 is about 855.1483070937.

The spelling of 625351680 in words is "six hundred twenty-five million, three hundred fifty-one thousand, six hundred eighty".