51992472 has 32 divisors (see below), whose sum is σ = 148550400. Its totient is φ = 14854944.

The previous prime is 51992449. The next prime is 51992483. The reversal of 51992472 is 27429915.

51992472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51992472.

It is a congruent number.

It is an unprimeable number.

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, 154572 + ... + 154907.

It is an arithmetic number, because the mean of its divisors is an integer number (4642200).

Almost surely, 2^51992472 is an apocalyptic number.

It is an amenable number.

51992472 is an abundant number, since it is smaller than the sum of its proper divisors (96557928).

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

51992472 is a wasteful number, since it uses less digits than its factorization.

51992472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309495 (or 309491 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The square root of 51992472 is about 7210.5805591506. The cubic root of 51992472 is about 373.2331030535.

The spelling of 51992472 in words is "fifty-one million, nine hundred ninety-two thousand, four hundred seventy-two".