51245832 has 32 divisors (see below), whose sum is σ = 139762080. Its totient is φ = 15528960.

The previous prime is 51245827. The next prime is 51245861. The reversal of 51245832 is 23854215.

It is a super-2 number, since 2×51245832² = 5252270594744448, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51245832.

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, 96793 + ... + 97320.

It is an arithmetic number, because the mean of its divisors is an integer number (4367565).

Almost surely, 2^51245832 is an apocalyptic number.

It is an amenable number.

51245832 is an abundant number, since it is smaller than the sum of its proper divisors (88516248).

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

51245832 is a wasteful number, since it uses less digits than its factorization.

51245832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194133 (or 194129 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 51245832 is about 7158.6194199720. The cubic root of 51245832 is about 371.4378722382.

The spelling of 51245832 in words is "fifty-one million, two hundred forty-five thousand, eight hundred thirty-two".