56307889 has 16 divisors (see below), whose sum is σ = 63685440. Its totient is φ = 49341760.

The previous prime is 56307877. The next prime is 56307967. The reversal of 56307889 is 98870365.

56307889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 56307889 - 2⁵ = 56307857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56307809) 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 15 ways as a sum of consecutive naturals, for example, 33579 + ... + 35215.

It is an arithmetic number, because the mean of its divisors is an integer number (3980340).

Almost surely, 2^56307889 is an apocalyptic number.

56307889 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

56307889 is a deficient number, since it is larger than the sum of its proper divisors (7377551).

56307889 is a wasteful number, since it uses less digits than its factorization.

56307889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 56307889 is about 7503.8582742480. The cubic root of 56307889 is about 383.2861107971.

The spelling of 56307889 in words is "fifty-six million, three hundred seven thousand, eight hundred eighty-nine".