51412312 has 32 divisors (see below), whose sum is σ = 110437920. Its totient is φ = 21980160.

The previous prime is 51412297. The next prime is 51412373. The reversal of 51412312 is 21321415.

It is a self number, because there is not a number n which added to its sum of digits gives 51412312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29448 + ... + 31144.

It is an arithmetic number, because the mean of its divisors is an integer number (3451185).

Almost surely, 2^51412312 is an apocalyptic number.

It is an amenable number.

51412312 is an abundant number, since it is smaller than the sum of its proper divisors (59025608).

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

51412312 is a wasteful number, since it uses less digits than its factorization.

51412312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251 (or 2247 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 51412312 is about 7170.2379318960. The cubic root of 51412312 is about 371.8396618917.

Adding to 51412312 its reverse (21321415), we get a palindrome (72733727).

The spelling of 51412312 in words is "fifty-one million, four hundred twelve thousand, three hundred twelve".