51164464 has 20 divisors (see below), whose sum is σ = 106757056. Its totient is φ = 23614272.

The previous prime is 51164461. The next prime is 51164471. The reversal of 51164464 is 46446115.

51164464 = 122² + 123² + ... + 537².

It is not an unprimeable number, because it can be changed into a prime (51164461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122784 + ... + 123199.

Almost surely, 2^51164464 is an apocalyptic number.

It is an amenable number.

51164464 is an abundant number, since it is smaller than the sum of its proper divisors (55592592).

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

51164464 is a wasteful number, since it uses less digits than its factorization.

51164464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246004 (or 245998 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 51164464 is about 7152.9339434948. The cubic root of 51164464 is about 371.2411787328.

The spelling of 51164464 in words is "fifty-one million, one hundred sixty-four thousand, four hundred sixty-four".