51533956 has 12 divisors (see below), whose sum is σ = 90299020. Its totient is φ = 25734240.

The previous prime is 51533939. The next prime is 51533969. The reversal of 51533956 is 65933515.

It can be written as a sum of positive squares in 2 ways, for example, as 35212356 + 16321600 = 5934^2 + 4040^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4455 + ... + 11086.

Almost surely, 2^51533956 is an apocalyptic number.

It is an amenable number.

51533956 is a deficient number, since it is larger than the sum of its proper divisors (38765064).

51533956 is a wasteful number, since it uses less digits than its factorization.

51533956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16374 (or 16372 counting only the distinct ones).

The product of its digits is 60750, while the sum is 37.

The square root of 51533956 is about 7178.7154839846. The cubic root of 51533956 is about 372.1326944043.

The spelling of 51533956 in words is "fifty-one million, five hundred thirty-three thousand, nine hundred fifty-six".