51786882 has 24 divisors (see below), whose sum is σ = 128234496. Its totient is φ = 14796216.

The previous prime is 51786863. The next prime is 51786899. The reversal of 51786882 is 28868715.

It is a super-2 number, since 2×51786882² = 5363762294563848, which contains 22 as substring.

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, 205378 + ... + 205629.

It is an arithmetic number, because the mean of its divisors is an integer number (5343104).

Almost surely, 2^51786882 is an apocalyptic number.

51786882 is an abundant number, since it is smaller than the sum of its proper divisors (76447614).

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

51786882 is a wasteful number, since it uses less digits than its factorization.

51786882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411022 (or 411019 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 51786882 is about 7196.3103045936. The cubic root of 51786882 is about 372.7405038153.

The spelling of 51786882 in words is "fifty-one million, seven hundred eighty-six thousand, eight hundred eighty-two".