51492252 has 96 divisors (see below), whose sum is σ = 147184128. Its totient is φ = 13676544.

The previous prime is 51492173. The next prime is 51492257. The reversal of 51492252 is 25229415.

51492252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51492257) 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 31 ways as a sum of consecutive naturals, for example, 152628 + ... + 152964.

It is an arithmetic number, because the mean of its divisors is an integer number (1533168).

Almost surely, 2^51492252 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 51492252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73592064).

51492252 is an abundant number, since it is smaller than the sum of its proper divisors (95691876).

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

51492252 is a wasteful number, since it uses less digits than its factorization.

51492252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 473 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 51492252 is about 7175.8101981588. The cubic root of 51492252 is about 372.0322841677.

The spelling of 51492252 in words is "fifty-one million, four hundred ninety-two thousand, two hundred fifty-two".