51183885 has 16 divisors (see below), whose sum is σ = 82495296. Its totient is φ = 27097728.

The previous prime is 51183841. The next prime is 51183911. The reversal of 51183885 is 58838115.

It is not a de Polignac number, because 51183885 - 2⁷ = 51183757 is a prime.

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, 10399 + ... + 14508.

It is an arithmetic number, because the mean of its divisors is an integer number (5155956).

Almost surely, 2^51183885 is an apocalyptic number.

It is an amenable number.

51183885 is a deficient number, since it is larger than the sum of its proper divisors (31311411).

51183885 is a wasteful number, since it uses less digits than its factorization.

51183885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25052.

The product of its digits is 38400, while the sum is 39.

The square root of 51183885 is about 7154.2913695208. The cubic root of 51183885 is about 371.2881446822.

The spelling of 51183885 in words is "fifty-one million, one hundred eighty-three thousand, eight hundred eighty-five".