51200312 has 32 divisors (see below), whose sum is σ = 99900000. Its totient is φ = 24571008.

The previous prime is 51200309. The next prime is 51200329. The reversal of 51200312 is 21300215.

It is a happy number.

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, 45614 + ... + 46722.

It is an arithmetic number, because the mean of its divisors is an integer number (3121875).

Almost surely, 2^51200312 is an apocalyptic number.

It is an amenable number.

51200312 is a deficient number, since it is larger than the sum of its proper divisors (48699688).

51200312 is a wasteful number, since it uses less digits than its factorization.

51200312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343 (or 1339 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 51200312 is about 7155.4393296289. The cubic root of 51200312 is about 371.3278609457.

Adding to 51200312 its reverse (21300215), we get a palindrome (72500527).

The spelling of 51200312 in words is "fifty-one million, two hundred thousand, three hundred twelve".