51580789 has 16 divisors (see below), whose sum is σ = 58367232. Its totient is φ = 45226368.

The previous prime is 51580783. The next prime is 51580799. The reversal of 51580789 is 98708515.

It is a cyclic number.

It is not a de Polignac number, because 51580789 - 2⁵ = 51580757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51580783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49417 + ... + 50449.

It is an arithmetic number, because the mean of its divisors is an integer number (3647952).

Almost surely, 2^51580789 is an apocalyptic number.

It is an amenable number.

51580789 is a deficient number, since it is larger than the sum of its proper divisors (6786443).

51580789 is a wasteful number, since it uses less digits than its factorization.

51580789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236.

The product of its (nonzero) digits is 100800, while the sum is 43.

The square root of 51580789 is about 7181.9766777678. The cubic root of 51580789 is about 372.2453891210.

The spelling of 51580789 in words is "fifty-one million, five hundred eighty thousand, seven hundred eighty-nine".