51567972 has 24 divisors (see below), whose sum is σ = 120472800. Its totient is φ = 17168256.

The previous prime is 51567959. The next prime is 51567979. The reversal of 51567972 is 27976515.

51567972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51567979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9979 + ... + 14237.

It is an arithmetic number, because the mean of its divisors is an integer number (5019700).

Almost surely, 2^51567972 is an apocalyptic number.

It is an amenable number.

51567972 is an abundant number, since it is smaller than the sum of its proper divisors (68904828).

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

51567972 is a wasteful number, since it uses less digits than its factorization.

51567972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275 (or 5273 counting only the distinct ones).

The product of its digits is 132300, while the sum is 42.

The square root of 51567972 is about 7181.0843192376. The cubic root of 51567972 is about 372.2145542277.

The spelling of 51567972 in words is "fifty-one million, five hundred sixty-seven thousand, nine hundred seventy-two".