56089869 has 16 divisors (see below), whose sum is σ = 81877824. Its totient is φ = 33872000.

The previous prime is 56089867. The next prime is 56089883. The reversal of 56089869 is 96898065.

It is a cyclic number.

It is not a de Polignac number, because 56089869 - 2¹ = 56089867 is a prime.

It is a super-2 number, since 2×56089869² = 6292146808874322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56089867) 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, 6769 + ... + 12569.

It is an arithmetic number, because the mean of its divisors is an integer number (5117364).

Almost surely, 2^56089869 is an apocalyptic number.

It is an amenable number.

56089869 is a deficient number, since it is larger than the sum of its proper divisors (25787955).

56089869 is a wasteful number, since it uses less digits than its factorization.

56089869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6108.

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 56089869 is about 7489.3169915554. The cubic root of 56089869 is about 382.7907857593.

The spelling of 56089869 in words is "fifty-six million, eighty-nine thousand, eight hundred sixty-nine".