45566409 has 16 divisors (see below), whose sum is σ = 73519488. Its totient is φ = 24506112.

The previous prime is 45566401. The next prime is 45566431. The reversal of 45566409 is 90466554.

It is not a de Polignac number, because 45566409 - 2³ = 45566401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45566401) 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, 63462 + ... + 64175.

It is an arithmetic number, because the mean of its divisors is an integer number (4594968).

Almost surely, 2^45566409 is an apocalyptic number.

It is an amenable number.

45566409 is a deficient number, since it is larger than the sum of its proper divisors (27953079).

45566409 is a wasteful number, since it uses less digits than its factorization.

45566409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127664.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 45566409 is about 6750.2895493453. The cubic root of 45566409 is about 357.1754506406.

The spelling of 45566409 in words is "forty-five million, five hundred sixty-six thousand, four hundred nine".