51756632 has 8 divisors (see below), whose sum is σ = 97043700. Its totient is φ = 25878312.

The previous prime is 51756623. The next prime is 51756697. The reversal of 51756632 is 23665715.

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

It is a junction number, because it is equal to n+sod(n) for n = 51756592 and 51756601.

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, 3234782 + ... + 3234797.

Almost surely, 2^51756632 is an apocalyptic number.

It is an amenable number.

51756632 is a deficient number, since it is larger than the sum of its proper divisors (45287068).

51756632 is a wasteful number, since it uses less digits than its factorization.

51756632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6469585 (or 6469581 counting only the distinct ones).

The product of its digits is 37800, while the sum is 35.

The square root of 51756632 is about 7194.2082260663. The cubic root of 51756632 is about 372.6679140272.

The spelling of 51756632 in words is "fifty-one million, seven hundred fifty-six thousand, six hundred thirty-two".