51964964 has 12 divisors (see below), whose sum is σ = 91961100. Its totient is φ = 25690368.

The previous prime is 51964931. The next prime is 51964967. The reversal of 51964964 is 46946915.

It can be written as a sum of positive squares in 2 ways, for example, as 12902464 + 39062500 = 3592^2 + 6250^2 .

It is not an unprimeable number, because it can be changed into a prime (51964967) 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, 72629 + ... + 73340.

It is an arithmetic number, because the mean of its divisors is an integer number (7663425).

Almost surely, 2^51964964 is an apocalyptic number.

It is an amenable number.

51964964 is a deficient number, since it is larger than the sum of its proper divisors (39996136).

51964964 is a wasteful number, since it uses less digits than its factorization.

51964964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146062 (or 146060 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 51964964 is about 7208.6728320822. The cubic root of 51964964 is about 373.1672684753.

The spelling of 51964964 in words is "fifty-one million, nine hundred sixty-four thousand, nine hundred sixty-four".