51858801 has 6 divisors (see below), whose sum is σ = 74907170. Its totient is φ = 34572528.

The previous prime is 51858773. The next prime is 51858811. The reversal of 51858801 is 10885815.

It can be written as a sum of positive squares in only one way, i.e., 32490000 + 19368801 = 5700^2 + 4401^2 .

It is not a de Polignac number, because 51858801 - 2⁵ = 51858769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51858811) 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, 2881036 + ... + 2881053.

Almost surely, 2^51858801 is an apocalyptic number.

It is an amenable number.

51858801 is a deficient number, since it is larger than the sum of its proper divisors (23048369).

51858801 is a wasteful number, since it uses less digits than its factorization.

51858801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5762095 (or 5762092 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 36.

The square root of 51858801 is about 7201.3055066425. The cubic root of 51858801 is about 372.9129717156.

It can be divided in two parts, 518 and 58801, that added together give a cube (59319 = 39³).

The spelling of 51858801 in words is "fifty-one million, eight hundred fifty-eight thousand, eight hundred one".