45565553 has 16 divisors (see below), whose sum is σ = 54604800. Its totient is φ = 37532880.

The previous prime is 45565529. The next prime is 45565571. The reversal of 45565553 is 35556554.

It is not a de Polignac number, because 45565553 - 2⁸ = 45565297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45565573) 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, 68 + ... + 9546.

It is an arithmetic number, because the mean of its divisors is an integer number (3412800).

Almost surely, 2^45565553 is an apocalyptic number.

It is an amenable number.

45565553 is a deficient number, since it is larger than the sum of its proper divisors (9039247).

45565553 is a wasteful number, since it uses less digits than its factorization.

45565553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9532.

The product of its digits is 225000, while the sum is 38.

The square root of 45565553 is about 6750.2261443599. The cubic root of 45565553 is about 357.1732140215.

The spelling of 45565553 in words is "forty-five million, five hundred sixty-five thousand, five hundred fifty-three".