56605089 has 8 divisors (see below), whose sum is σ = 75549600. Its totient is φ = 37698656.

The previous prime is 56605067. The next prime is 56605091. The reversal of 56605089 is 98050665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56605089 - 2⁵ = 56605057 is a prime.

It is a super-2 number, since 2×56605089² = 6408272201395842, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56605489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5847 + ... + 12140.

It is an arithmetic number, because the mean of its divisors is an integer number (9443700).

Almost surely, 2^56605089 is an apocalyptic number.

It is an amenable number.

56605089 is a deficient number, since it is larger than the sum of its proper divisors (18944511).

56605089 is a wasteful number, since it uses less digits than its factorization.

56605089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19039.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 56605089 is about 7523.6353579902. The cubic root of 56605089 is about 383.9592716678.

The spelling of 56605089 in words is "fifty-six million, six hundred five thousand, eighty-nine".