51468624 has 30 divisors (see below), whose sum is σ = 144041066. Its totient is φ = 17156160.

The previous prime is 51468589. The next prime is 51468629. The reversal of 51468624 is 42686415.

It can be written as a sum of positive squares in only one way, i.e., 39690000 + 11778624 = 6300^2 + 3432^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51468629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178567 + ... + 178854.

Almost surely, 2^51468624 is an apocalyptic number.

It is an amenable number.

51468624 is an abundant number, since it is smaller than the sum of its proper divisors (92572442).

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

51468624 is a wasteful number, since it uses less digits than its factorization.

51468624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357435 (or 357426 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 51468624 is about 7174.1636446348. The cubic root of 51468624 is about 371.9753712449.

The spelling of 51468624 in words is "fifty-one million, four hundred sixty-eight thousand, six hundred twenty-four".