51572992 has 72 divisors (see below), whose sum is σ = 113319360. Its totient is φ = 23316480.

The previous prime is 51572977. The next prime is 51573001. The reversal of 51572992 is 29927515.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111642 + ... + 112102.

It is an arithmetic number, because the mean of its divisors is an integer number (1573880).

Almost surely, 2^51572992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51572992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56659680).

51572992 is an abundant number, since it is smaller than the sum of its proper divisors (61746368).

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

51572992 is a wasteful number, since it uses less digits than its factorization.

51572992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 505 counting only the distinct ones).

The product of its digits is 56700, while the sum is 40.

The square root of 51572992 is about 7181.4338401186. The cubic root of 51572992 is about 372.2266318562.

The spelling of 51572992 in words is "fifty-one million, five hundred seventy-two thousand, nine hundred ninety-two".