45165556 has 12 divisors (see below), whose sum is σ = 79779168. Its totient is φ = 22371512.

The previous prime is 45165551. The next prime is 45165563. The reversal of 45165556 is 65556154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45165551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52336 + ... + 53191.

It is an arithmetic number, because the mean of its divisors is an integer number (6648264).

Almost surely, 2^45165556 is an apocalyptic number.

It is an amenable number.

45165556 is a deficient number, since it is larger than the sum of its proper divisors (34613612).

45165556 is a wasteful number, since it uses less digits than its factorization.

45165556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105638 (or 105636 counting only the distinct ones).

The product of its digits is 90000, while the sum is 37.

The square root of 45165556 is about 6720.5324193846. The cubic root of 45165556 is about 356.1249929313.

The spelling of 45165556 in words is "forty-five million, one hundred sixty-five thousand, five hundred fifty-six".