51292885 has 16 divisors (see below), whose sum is σ = 71338752. Its totient is φ = 34675200.

The previous prime is 51292861. The next prime is 51292903. The reversal of 51292885 is 58829215.

It is not a de Polignac number, because 51292885 - 2¹³ = 51284693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7836 + ... + 12805.

It is an arithmetic number, because the mean of its divisors is an integer number (4458672).

Almost surely, 2^51292885 is an apocalyptic number.

It is an amenable number.

51292885 is a deficient number, since it is larger than the sum of its proper divisors (20045867).

51292885 is a wasteful number, since it uses less digits than its factorization.

51292885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20724.

The product of its digits is 57600, while the sum is 40.

The square root of 51292885 is about 7161.9051236385. The cubic root of 51292885 is about 371.5515199838.

The spelling of 51292885 in words is "fifty-one million, two hundred ninety-two thousand, eight hundred eighty-five".