51338874 has 64 divisors (see below), whose sum is σ = 114307200. Its totient is φ = 15305472.

The previous prime is 51338867. The next prime is 51338879. The reversal of 51338874 is 47883315.

It is not an unprimeable number, because it can be changed into a prime (51338879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175072 + ... + 175364.

It is an arithmetic number, because the mean of its divisors is an integer number (1786050).

Almost surely, 2^51338874 is an apocalyptic number.

51338874 is an abundant number, since it is smaller than the sum of its proper divisors (62968326).

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

51338874 is a wasteful number, since it uses less digits than its factorization.

51338874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399.

The product of its digits is 80640, while the sum is 39.

The square root of 51338874 is about 7165.1150723488. The cubic root of 51338874 is about 371.6625306928.

The spelling of 51338874 in words is "fifty-one million, three hundred thirty-eight thousand, eight hundred seventy-four".