51255932 has 24 divisors (see below), whose sum is σ = 110398176. Its totient is φ = 20276928.

The previous prime is 51255931. The next prime is 51255943. The reversal of 51255932 is 23955215.

51255932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51255931) 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, 70043 + ... + 70770.

It is an arithmetic number, because the mean of its divisors is an integer number (4599924).

Almost surely, 2^51255932 is an apocalyptic number.

51255932 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51255932 is an abundant number, since it is smaller than the sum of its proper divisors (59142244).

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

51255932 is a wasteful number, since it uses less digits than its factorization.

51255932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140837 (or 140835 counting only the distinct ones).

The product of its digits is 13500, while the sum is 32.

The square root of 51255932 is about 7159.3248285016. The cubic root of 51255932 is about 371.4622727662.

The spelling of 51255932 in words is "fifty-one million, two hundred fifty-five thousand, nine hundred thirty-two".