51715874 has 48 divisors (see below), whose sum is σ = 96526080. Its totient is φ = 20674080.

The previous prime is 51715837. The next prime is 51715877. The reversal of 51715874 is 47851715.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51715877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87809 + ... + 88395.

It is an arithmetic number, because the mean of its divisors is an integer number (2010960).

Almost surely, 2^51715874 is an apocalyptic number.

51715874 is a deficient number, since it is larger than the sum of its proper divisors (44810206).

51715874 is a wasteful number, since it uses less digits than its factorization.

51715874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 656 counting only the distinct ones).

The product of its digits is 39200, while the sum is 38.

The square root of 51715874 is about 7191.3749728407. The cubic root of 51715874 is about 372.5700638444.

The spelling of 51715874 in words is "fifty-one million, seven hundred fifteen thousand, eight hundred seventy-four".