45508555 has 4 divisors (see below), whose sum is σ = 54610272. Its totient is φ = 36406840.

The previous prime is 45508543. The next prime is 45508597. The reversal of 45508555 is 55580554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55580554 = 2 ⋅27790277.

It is not a de Polignac number, because 45508555 - 2⁷ = 45508427 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4550851 + ... + 4550860.

It is an arithmetic number, because the mean of its divisors is an integer number (13652568).

Almost surely, 2^45508555 is an apocalyptic number.

45508555 is a deficient number, since it is larger than the sum of its proper divisors (9101717).

45508555 is an equidigital number, since it uses as much as digits as its factorization.

45508555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9101716.

The product of its (nonzero) digits is 100000, while the sum is 37.

The square root of 45508555 is about 6746.0028906012. The cubic root of 45508555 is about 357.0242224252.

The spelling of 45508555 in words is "forty-five million, five hundred eight thousand, five hundred fifty-five".