51311883 has 16 divisors (see below), whose sum is σ = 79358720. Its totient is φ = 28882656.

The previous prime is 51311881. The next prime is 51311891. The reversal of 51311883 is 38811315.

It is not a de Polignac number, because 51311883 - 2¹ = 51311881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51311883.

It is not an unprimeable number, because it can be changed into a prime (51311881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16828 + ... + 19641.

It is an arithmetic number, because the mean of its divisors is an integer number (4959920).

Almost surely, 2^51311883 is an apocalyptic number.

51311883 is a deficient number, since it is larger than the sum of its proper divisors (28046837).

51311883 is a wasteful number, since it uses less digits than its factorization.

51311883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36546.

The product of its digits is 2880, while the sum is 30.

The square root of 51311883 is about 7163.2313239208. The cubic root of 51311883 is about 371.5973864132.

The spelling of 51311883 in words is "fifty-one million, three hundred eleven thousand, eight hundred eighty-three".