51572016 has 60 divisors (see below), whose sum is σ = 152827272. Its totient is φ = 16178688.

The previous prime is 51571963. The next prime is 51572041. The reversal of 51572016 is 61027515.

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, 8086 + ... + 12981.

Almost surely, 2^51572016 is an apocalyptic number.

It is an amenable number.

51572016 is an abundant number, since it is smaller than the sum of its proper divisors (101255256).

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

51572016 is a wasteful number, since it uses less digits than its factorization.

51572016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21098 (or 21089 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 51572016 is about 7181.3658867934. The cubic root of 51572016 is about 372.2242837571.

The spelling of 51572016 in words is "fifty-one million, five hundred seventy-two thousand, sixteen".