51975632 has 20 divisors (see below), whose sum is σ = 101082816. Its totient is φ = 25889760.

The previous prime is 51975631. The next prime is 51975673. The reversal of 51975632 is 23657915.

It is a happy number.

It is a hoax number, since the sum of its digits (38) 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 (51975631) 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, 1658 + ... + 10329.

Almost surely, 2^51975632 is an apocalyptic number.

It is an amenable number.

51975632 is a deficient number, since it is larger than the sum of its proper divisors (49107184).

51975632 is a wasteful number, since it uses less digits than its factorization.

51975632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12266 (or 12260 counting only the distinct ones).

The product of its digits is 56700, while the sum is 38.

The square root of 51975632 is about 7209.4127361388. The cubic root of 51975632 is about 373.1928028336.

The spelling of 51975632 in words is "fifty-one million, nine hundred seventy-five thousand, six hundred thirty-two".