51637634 has 8 divisors (see below), whose sum is σ = 77668608. Its totient is φ = 25748100.

The previous prime is 51637633. The next prime is 51637667. The reversal of 51637634 is 43673615.

51637634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 51637594 and 51637603.

It is not an unprimeable number, because it can be changed into a prime (51637633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34442 + ... + 35909.

It is an arithmetic number, because the mean of its divisors is an integer number (9708576).

Almost surely, 2^51637634 is an apocalyptic number.

51637634 is a deficient number, since it is larger than the sum of its proper divisors (26030974).

51637634 is a wasteful number, since it uses less digits than its factorization.

51637634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70720.

The product of its digits is 45360, while the sum is 35.

The square root of 51637634 is about 7185.9330639799. The cubic root of 51637634 is about 372.3820842035.

The spelling of 51637634 in words is "fifty-one million, six hundred thirty-seven thousand, six hundred thirty-four".