51500632 has 8 divisors (see below), whose sum is σ = 96563700. Its totient is φ = 25750312.

The previous prime is 51500609. The next prime is 51500639. The reversal of 51500632 is 23600515.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51500639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3218782 + ... + 3218797.

Almost surely, 2^51500632 is an apocalyptic number.

It is an amenable number.

51500632 is a deficient number, since it is larger than the sum of its proper divisors (45063068).

51500632 is a wasteful number, since it uses less digits than its factorization.

51500632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6437585 (or 6437581 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 51500632 is about 7176.3940805951. The cubic root of 51500632 is about 372.0524649477.

The spelling of 51500632 in words is "fifty-one million, five hundred thousand, six hundred thirty-two".