51853564 has 18 divisors (see below), whose sum is σ = 105559440. Its totient is φ = 22222872.

The previous prime is 51853559. The next prime is 51853573. The reversal of 51853564 is 46535815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132084 + ... + 132475.

Almost surely, 2^51853564 is an apocalyptic number.

It is an amenable number.

51853564 is an abundant number, since it is smaller than the sum of its proper divisors (53705876).

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

51853564 is a wasteful number, since it uses less digits than its factorization.

51853564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264577 (or 264568 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 51853564 is about 7200.9418828373. The cubic root of 51853564 is about 372.9004183274.

The spelling of 51853564 in words is "fifty-one million, eight hundred fifty-three thousand, five hundred sixty-four".