51642616 has 32 divisors (see below), whose sum is σ = 100497600. Its totient is φ = 24860160.

The previous prime is 51642601. The next prime is 51642623. The reversal of 51642616 is 61624615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24916 + ... + 26908.

It is an arithmetic number, because the mean of its divisors is an integer number (3140550).

Almost surely, 2^51642616 is an apocalyptic number.

It is an amenable number.

51642616 is a deficient number, since it is larger than the sum of its proper divisors (48854984).

51642616 is a wasteful number, since it uses less digits than its factorization.

51642616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119 (or 2115 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 51642616 is about 7186.2797051047. The cubic root of 51642616 is about 372.3940596287.

The spelling of 51642616 in words is "fifty-one million, six hundred forty-two thousand, six hundred sixteen".