51964623 has 12 divisors (see below), whose sum is σ = 75190440. Its totient is φ = 34582896.

The previous prime is 51964621. The next prime is 51964667. The reversal of 51964623 is 32646915.

It is a happy number.

51964623 is a `hidden beast` number, since 5 + 1 + 9 + 646 + 2 + 3 = 666.

It is not a de Polignac number, because 51964623 - 2¹ = 51964621 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51964621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 808 + ... + 10226.

It is an arithmetic number, because the mean of its divisors is an integer number (6265870).

Almost surely, 2^51964623 is an apocalyptic number.

51964623 is a deficient number, since it is larger than the sum of its proper divisors (23225817).

51964623 is a wasteful number, since it uses less digits than its factorization.

51964623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10038 (or 10035 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 51964623 is about 7208.6491799782. The cubic root of 51964623 is about 373.1664522182.

The spelling of 51964623 in words is "fifty-one million, nine hundred sixty-four thousand, six hundred twenty-three".