51884955 has 20 divisors (see below), whose sum is σ = 93009312. Its totient is φ = 27671760.

The previous prime is 51884939. The next prime is 51884977. The reversal of 51884955 is 55948815.

It is a happy number.

51884955 is a `hidden beast` number, since 518 + 84 + 9 + 55 = 666.

It is not a de Polignac number, because 51884955 - 2⁴ = 51884939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 51884955.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 63651 + ... + 64460.

Almost surely, 2^51884955 is an apocalyptic number.

51884955 is a deficient number, since it is larger than the sum of its proper divisors (41124357).

51884955 is a wasteful number, since it uses less digits than its factorization.

51884955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128128 (or 128119 counting only the distinct ones).

The product of its digits is 288000, while the sum is 45.

The square root of 51884955 is about 7203.1211984806. The cubic root of 51884955 is about 372.9756517012.

The spelling of 51884955 in words is "fifty-one million, eight hundred eighty-four thousand, nine hundred fifty-five".