51313262 has 96 divisors (see below), whose sum is σ = 110605824. Its totient is φ = 17236800.

The previous prime is 51313247. The next prime is 51313289. The reversal of 51313262 is 26231315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 722687 + ... + 722757.

It is an arithmetic number, because the mean of its divisors is an integer number (1152144).

Almost surely, 2^51313262 is an apocalyptic number.

51313262 is an abundant number, since it is smaller than the sum of its proper divisors (59292562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51313262 is a wasteful number, since it uses less digits than its factorization.

51313262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 123 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 51313262 is about 7163.3275787165. The cubic root of 51313262 is about 371.6007152601.

Adding to 51313262 its reverse (26231315), we get a palindrome (77544577).

It can be divided in two parts, 51 and 313262, that added together give a palindrome (313313).

The spelling of 51313262 in words is "fifty-one million, three hundred thirteen thousand, two hundred sixty-two".