56455009 has 8 divisors (see below), whose sum is σ = 61115432. Its totient is φ = 51840000.

The previous prime is 56454997. The next prime is 56455013. The reversal of 56455009 is 90055465.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10595025 + 45859984 = 3255^2 + 6772^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56455009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56455109) 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, 8742 + ... + 13759.

It is an arithmetic number, because the mean of its divisors is an integer number (7639429).

Almost surely, 2^56455009 is an apocalyptic number.

It is an amenable number.

56455009 is a deficient number, since it is larger than the sum of its proper divisors (4660423).

56455009 is a wasteful number, since it uses less digits than its factorization.

56455009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22707.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 56455009 is about 7513.6548363629. The cubic root of 56455009 is about 383.6196342997.

The spelling of 56455009 in words is "fifty-six million, four hundred fifty-five thousand, nine".