51580881 has 48 divisors (see below), whose sum is σ = 88058880. Its totient is φ = 29866320.

The previous prime is 51580853. The next prime is 51580889. The reversal of 51580881 is 18808515.

51580881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51580881 - 2⁹ = 51580369 is a prime.

It is a super-2 number, since 2×51580881² = 5321174569472322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51580889) 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 47 ways as a sum of consecutive naturals, for example, 61060 + ... + 61898.

It is an arithmetic number, because the mean of its divisors is an integer number (1834560).

Almost surely, 2^51580881 is an apocalyptic number.

It is an amenable number.

51580881 is a deficient number, since it is larger than the sum of its proper divisors (36477999).

51580881 is a wasteful number, since it uses less digits than its factorization.

51580881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 36.

The square root of 51580881 is about 7181.9830826868. The cubic root of 51580881 is about 372.2456104344.

The spelling of 51580881 in words is "fifty-one million, five hundred eighty thousand, eight hundred eighty-one".