51468724 has 24 divisors (see below), whose sum is σ = 97174728. Its totient is φ = 23761920.

The previous prime is 51468719. The next prime is 51468731. The reversal of 51468724 is 42786415.

It can be written as a sum of positive squares in 4 ways, for example, as 3610000 + 47858724 = 1900^2 + 6918^2 .

It is a congruent number.

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, 3537 + ... + 10744.

It is an arithmetic number, because the mean of its divisors is an integer number (4048947).

Almost surely, 2^51468724 is an apocalyptic number.

It is an amenable number.

51468724 is a deficient number, since it is larger than the sum of its proper divisors (45706004).

51468724 is a wasteful number, since it uses less digits than its factorization.

51468724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14355 (or 14353 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 51468724 is about 7174.1706140849. The cubic root of 51468724 is about 371.9756121523.

The spelling of 51468724 in words is "fifty-one million, four hundred sixty-eight thousand, seven hundred twenty-four".