45218455 has 4 divisors (see below), whose sum is σ = 54262152. Its totient is φ = 36174760.

The previous prime is 45218447. The next prime is 45218479. The reversal of 45218455 is 55481254.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 45218455 - 2³ = 45218447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45218455.

It is a congruent 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, 4521841 + ... + 4521850.

It is an arithmetic number, because the mean of its divisors is an integer number (13565538).

Almost surely, 2^45218455 is an apocalyptic number.

45218455 is a deficient number, since it is larger than the sum of its proper divisors (9043697).

45218455 is an equidigital number, since it uses as much as digits as its factorization.

45218455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9043696.

The product of its digits is 32000, while the sum is 34.

The square root of 45218455 is about 6724.4668933678. The cubic root of 45218455 is about 356.2639727771.

The spelling of 45218455 in words is "forty-five million, two hundred eighteen thousand, four hundred fifty-five".