51895964 has 24 divisors (see below), whose sum is σ = 94231200. Its totient is φ = 24978240.

The previous prime is 51895939. The next prime is 51895979. The reversal of 51895964 is 46959815.

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, 72842 + ... + 73550.

It is an arithmetic number, because the mean of its divisors is an integer number (3926300).

Almost surely, 2^51895964 is an apocalyptic number.

It is an amenable number.

51895964 is a deficient number, since it is larger than the sum of its proper divisors (42335236).

51895964 is a wasteful number, since it uses less digits than its factorization.

51895964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373 (or 1371 counting only the distinct ones).

The product of its digits is 388800, while the sum is 47.

The square root of 51895964 is about 7203.8853405645. The cubic root of 51895964 is about 373.0020292807.

The spelling of 51895964 in words is "fifty-one million, eight hundred ninety-five thousand, nine hundred sixty-four".