51868804 has 27 divisors (see below), whose sum is σ = 98645967. Its totient is φ = 23853024.

The previous prime is 51868801. The next prime is 51868807. The reversal of 51868804 is 40886815.

The square root of 51868804 is 7202.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (51868801) and next prime (51868807).

It can be written as a sum of positive squares in 4 ways, for example, as 23990404 + 27878400 = 4898^2 + 5280^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51868801) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 187114 + ... + 187390.

Almost surely, 2^51868804 is an apocalyptic number.

51868804 is the 7202-nd square number.

It is an amenable number.

51868804 is a deficient number, since it is larger than the sum of its proper divisors (46777163).

51868804 is a wasteful number, since it uses less digits than its factorization.

51868804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The cubic root of 51868804 is about 372.9369471294.

The spelling of 51868804 in words is "fifty-one million, eight hundred sixty-eight thousand, eight hundred four".