51632537 has 8 divisors (see below), whose sum is σ = 56844480. Its totient is φ = 46506960.

The previous prime is 51632527. The next prime is 51632543. The reversal of 51632537 is 73523615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51632537 - 2⁶ = 51632473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51632527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20333 + ... + 22730.

It is an arithmetic number, because the mean of its divisors is an integer number (7105560).

Almost surely, 2^51632537 is an apocalyptic number.

It is an amenable number.

51632537 is a deficient number, since it is larger than the sum of its proper divisors (5211943).

51632537 is a wasteful number, since it uses less digits than its factorization.

51632537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43183.

The product of its digits is 18900, while the sum is 32.

The square root of 51632537 is about 7185.5784039978. The cubic root of 51632537 is about 372.3698315511.

The spelling of 51632537 in words is "fifty-one million, six hundred thirty-two thousand, five hundred thirty-seven".