45056561 has 8 divisors (see below), whose sum is σ = 50296224. Its totient is φ = 40007520.

The previous prime is 45056551. The next prime is 45056569. The reversal of 45056561 is 16565054.

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 45056561 - 2⁶ = 45056497 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (45056569) 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, 47156 + ... + 48101.

It is an arithmetic number, because the mean of its divisors is an integer number (6287028).

Almost surely, 2^45056561 is an apocalyptic number.

It is an amenable number.

45056561 is a deficient number, since it is larger than the sum of its proper divisors (5239663).

45056561 is a wasteful number, since it uses less digits than its factorization.

45056561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95311.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 45056561 is about 6712.4184166364. The cubic root of 45056561 is about 355.8382913467.

The spelling of 45056561 in words is "forty-five million, fifty-six thousand, five hundred sixty-one".