51972908 has 18 divisors (see below), whose sum is σ = 98488404. Its totient is φ = 23987184.

The previous prime is 51972889. The next prime is 51972911. The reversal of 51972908 is 80927915.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37766 + ... + 39117.

It is an arithmetic number, because the mean of its divisors is an integer number (5471578).

Almost surely, 2^51972908 is an apocalyptic number.

It is an amenable number.

51972908 is a deficient number, since it is larger than the sum of its proper divisors (46515496).

51972908 is a wasteful number, since it uses less digits than its factorization.

51972908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76913 (or 76898 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 51972908 is about 7209.2238139761. The cubic root of 51972908 is about 373.1862831441.

The spelling of 51972908 in words is "fifty-one million, nine hundred seventy-two thousand, nine hundred eight".