51964312 has 8 divisors (see below), whose sum is σ = 97433100. Its totient is φ = 25982152.

The previous prime is 51964307. The next prime is 51964379. The reversal of 51964312 is 21346915.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3247762 + ... + 3247777.

Almost surely, 2^51964312 is an apocalyptic number.

It is an amenable number.

51964312 is a deficient number, since it is larger than the sum of its proper divisors (45468788).

51964312 is a wasteful number, since it uses less digits than its factorization.

51964312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6495545 (or 6495541 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 51964312 is about 7208.6276086368. The cubic root of 51964312 is about 373.1657077694.

The spelling of 51964312 in words is "fifty-one million, nine hundred sixty-four thousand, three hundred twelve".