625880280 has 32 divisors (see below), whose sum is σ = 1877641200. Its totient is φ = 166901376.

The previous prime is 625880267. The next prime is 625880309. The reversal of 625880280 is 82088526.

It is a super-2 number, since 2×625880280² = 783452249785756800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2607715 + ... + 2607954.

Almost surely, 2^625880280 is an apocalyptic number.

625880280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

625880280 is an abundant number, since it is smaller than the sum of its proper divisors (1251760920).

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

625880280 is a wasteful number, since it uses less digits than its factorization.

625880280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5215683 (or 5215679 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 625880280 is about 25017.5994052187. The cubic root of 625880280 is about 855.3891870681.

The spelling of 625880280 in words is "six hundred twenty-five million, eight hundred eighty thousand, two hundred eighty".