51886988 has 24 divisors (see below), whose sum is σ = 95074560. Its totient is φ = 24730640.

The previous prime is 51886981. The next prime is 51886997. The reversal of 51886988 is 88968815.

It is not an unprimeable number, because it can be changed into a prime (51886981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32243 + ... + 33813.

It is an arithmetic number, because the mean of its divisors is an integer number (3961440).

Almost surely, 2^51886988 is an apocalyptic number.

It is an amenable number.

51886988 is a deficient number, since it is larger than the sum of its proper divisors (43187572).

51886988 is a wasteful number, since it uses less digits than its factorization.

51886988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957 (or 1955 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 53.

The square root of 51886988 is about 7203.2623164786. The cubic root of 51886988 is about 372.9805230530.

The spelling of 51886988 in words is "fifty-one million, eight hundred eighty-six thousand, nine hundred eighty-eight".