51731296 has 12 divisors (see below), whose sum is σ = 101846052. Its totient is φ = 25865632.

The previous prime is 51731293. The next prime is 51731297. The reversal of 51731296 is 69213715.

It is a super-2 number, since 2×51731296² = 5352253971679232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51731293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808270 + ... + 808333.

It is an arithmetic number, because the mean of its divisors is an integer number (8487171).

Almost surely, 2^51731296 is an apocalyptic number.

It is an amenable number.

51731296 is a deficient number, since it is larger than the sum of its proper divisors (50114756).

51731296 is a wasteful number, since it uses less digits than its factorization.

51731296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616613 (or 1616605 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 51731296 is about 7192.4471496147. The cubic root of 51731296 is about 372.6070944118.

It can be divided in two parts, 517 and 31296, that added together give a palindrome (31813).

The spelling of 51731296 in words is "fifty-one million, seven hundred thirty-one thousand, two hundred ninety-six".