51474688 has 18 divisors (see below), whose sum is σ = 102748814. Its totient is φ = 25737216.

The previous prime is 51474677. The next prime is 51474697. The reversal of 51474688 is 88647415.

It can be written as a sum of positive squares in only one way, i.e., 43454464 + 8020224 = 6592^2 + 2832^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100281 + ... + 100792.

Almost surely, 2^51474688 is an apocalyptic number.

It is an amenable number.

51474688 is a deficient number, since it is larger than the sum of its proper divisors (51274126).

51474688 is an equidigital number, since it uses as much as digits as its factorization.

51474688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201089 (or 201075 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 51474688 is about 7174.5862598480. The cubic root of 51474688 is about 371.9899793038.

The spelling of 51474688 in words is "fifty-one million, four hundred seventy-four thousand, six hundred eighty-eight".