51774980 has 24 divisors (see below), whose sum is σ = 109045440. Its totient is φ = 20649440.

The previous prime is 51774973. The next prime is 51774997. The reversal of 51774980 is 8947715.

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, 3575 + ... + 10785.

It is an arithmetic number, because the mean of its divisors is an integer number (4543560).

Almost surely, 2^51774980 is an apocalyptic number.

It is an amenable number.

51774980 is an abundant number, since it is smaller than the sum of its proper divisors (57270460).

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

51774980 is a wasteful number, since it uses less digits than its factorization.

51774980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7579 (or 7577 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 51774980 is about 7195.4833055188. The cubic root of 51774980 is about 372.7119464071.

The spelling of 51774980 in words is "fifty-one million, seven hundred seventy-four thousand, nine hundred eighty".