51312304 has 10 divisors (see below), whose sum is σ = 99417620. Its totient is φ = 25656144.

The previous prime is 51312301. The next prime is 51312329. The reversal of 51312304 is 40321315.

It is not an unprimeable number, because it can be changed into a prime (51312301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1603494 + ... + 1603525.

It is an arithmetic number, because the mean of its divisors is an integer number (9941762).

Almost surely, 2^51312304 is an apocalyptic number.

It is an amenable number.

51312304 is a deficient number, since it is larger than the sum of its proper divisors (48105316).

51312304 is a wasteful number, since it uses less digits than its factorization.

51312304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3207027 (or 3207021 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 51312304 is about 7163.2607100398. The cubic root of 51312304 is about 371.5984026955.

Adding to 51312304 its reverse (40321315), we get a palindrome (91633619).

The spelling of 51312304 in words is "fifty-one million, three hundred twelve thousand, three hundred four".