51855204 has 24 divisors (see below), whose sum is σ = 124266688. Its totient is φ = 16817760.

The previous prime is 51855191. The next prime is 51855239. The reversal of 51855204 is 40255815.

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, 57952 + ... + 58839.

Almost surely, 2^51855204 is an apocalyptic number.

It is an amenable number.

51855204 is an abundant number, since it is smaller than the sum of its proper divisors (72411484).

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

51855204 is a wasteful number, since it uses less digits than its factorization.

51855204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116835 (or 116833 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 51855204 is about 7201.0557559291. The cubic root of 51855204 is about 372.9043495920.

The spelling of 51855204 in words is "fifty-one million, eight hundred fifty-five thousand, two hundred four".