51885380 has 48 divisors (see below), whose sum is σ = 112492800. Its totient is φ = 20092800.

The previous prime is 51885373. The next prime is 51885439. The reversal of 51885380 is 8358815.

51885380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86321 + ... + 86919.

It is an arithmetic number, because the mean of its divisors is an integer number (2343600).

Almost surely, 2^51885380 is an apocalyptic number.

It is an amenable number.

51885380 is an abundant number, since it is smaller than the sum of its proper divisors (60607420).

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

51885380 is a wasteful number, since it uses less digits than its factorization.

51885380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 51885380 is about 7203.1506995203. The cubic root of 51885380 is about 372.9766700711.

The spelling of 51885380 in words is "fifty-one million, eight hundred eighty-five thousand, three hundred eighty".