51853320 has 48 divisors (see below), whose sum is σ = 168524460. Its totient is φ = 13827456.

The previous prime is 51853303. The next prime is 51853369. The reversal of 51853320 is 2335815.

It can be written as a sum of positive squares in 2 ways, for example, as 44595684 + 7257636 = 6678^2 + 2694^2 .

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, 71659 + ... + 72378.

Almost surely, 2^51853320 is an apocalyptic number.

It is an amenable number.

51853320 is an abundant number, since it is smaller than the sum of its proper divisors (116671140).

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

51853320 is a wasteful number, since it uses less digits than its factorization.

51853320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144054 (or 144047 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 51853320 is about 7200.9249405892. The cubic root of 51853320 is about 372.8998334248.

The spelling of 51853320 in words is "fifty-one million, eight hundred fifty-three thousand, three hundred twenty".