6415625220 has 48 divisors (see below), whose sum is σ = 18021564288. Its totient is φ = 1705327360.

The previous prime is 6415625219. The next prime is 6415625239. The reversal of 6415625220 is 225265146.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153249 + ... + 190568.

It is an arithmetic number, because the mean of its divisors is an integer number (375449256).

Almost surely, 2^6415625220 is an apocalyptic number.

6415625220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6415625220 is an abundant number, since it is smaller than the sum of its proper divisors (11605939068).

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

6415625220 is a wasteful number, since it uses less digits than its factorization.

6415625220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344140 (or 344138 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 6415625220 is about 80097.5980913286. The cubic root of 6415625220 is about 1858.1452606135.

The spelling of 6415625220 in words is "six billion, four hundred fifteen million, six hundred twenty-five thousand, two hundred twenty".