56289086 has 16 divisors (see below), whose sum is σ = 96596064. Its totient is φ = 24098784.

The previous prime is 56289061. The next prime is 56289089. The reversal of 56289086 is 68098265.

It is a happy number.

It is a super-2 number, since 2×56289086² = 6336922405430792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56289089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19556 + ... + 22248.

It is an arithmetic number, because the mean of its divisors is an integer number (6037254).

Almost surely, 2^56289086 is an apocalyptic number.

56289086 is a deficient number, since it is larger than the sum of its proper divisors (40306978).

56289086 is a wasteful number, since it uses less digits than its factorization.

56289086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 56289086 is about 7502.6052808341. The cubic root of 56289086 is about 383.2434422283.

The spelling of 56289086 in words is "fifty-six million, two hundred eighty-nine thousand, eighty-six".