51424804 has 6 divisors (see below), whose sum is σ = 89993414. Its totient is φ = 25712400.

The previous prime is 51424781. The next prime is 51424819. The reversal of 51424804 is 40842415.

It can be written as a sum of positive squares in only one way, i.e., 38464804 + 12960000 = 6202^2 + 3600^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6428097 + ... + 6428104.

Almost surely, 2^51424804 is an apocalyptic number.

It is an amenable number.

51424804 is a deficient number, since it is larger than the sum of its proper divisors (38568610).

51424804 is a wasteful number, since it uses less digits than its factorization.

51424804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12856205 (or 12856203 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 51424804 is about 7171.1089797883. The cubic root of 51424804 is about 371.8697755922.

The spelling of 51424804 in words is "fifty-one million, four hundred twenty-four thousand, eight hundred four".