51314664 has 32 divisors (see below), whose sum is σ = 130393440. Its totient is φ = 16824000.

The previous prime is 51314639. The next prime is 51314677. The reversal of 51314664 is 46641315.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16062 + ... + 18989.

It is an arithmetic number, because the mean of its divisors is an integer number (4074795).

Almost surely, 2^51314664 is an apocalyptic number.

It is an amenable number.

51314664 is an abundant number, since it is smaller than the sum of its proper divisors (79078776).

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

51314664 is a wasteful number, since it uses less digits than its factorization.

51314664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35121 (or 35117 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 51314664 is about 7163.4254375962. The cubic root of 51314664 is about 371.6040995669.

Adding to 51314664 its reverse (46641315), we get a palindrome (97955979).

The spelling of 51314664 in words is "fifty-one million, three hundred fourteen thousand, six hundred sixty-four".