625520460 has 48 divisors (see below), whose sum is σ = 1755575136. Its totient is φ = 166413312.

The previous prime is 625520417. The next prime is 625520461. The reversal of 625520460 is 64025526.

It is a super-2 number, since 2×625520460² = 782551691757223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (625520461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13942 + ... + 38018.

It is an arithmetic number, because the mean of its divisors is an integer number (36574482).

Almost surely, 2^625520460 is an apocalyptic number.

625520460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

625520460 is an abundant number, since it is smaller than the sum of its proper divisors (1130054676).

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

625520460 is a wasteful number, since it uses less digits than its factorization.

625520460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24522 (or 24520 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 625520460 is about 25010.4070338729. The cubic root of 625520460 is about 855.2252339137.

Adding to 625520460 its reverse (64025526), we get a palindrome (689545986).

The spelling of 625520460 in words is "six hundred twenty-five million, five hundred twenty thousand, four hundred sixty".