45420555 has 16 divisors (see below), whose sum is σ = 72762624. Its totient is φ = 24194400.

The previous prime is 45420511. The next prime is 45420563. The reversal of 45420555 is 55502454.

It is not a de Polignac number, because 45420555 - 2⁶ = 45420491 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16530 + ... + 19080.

It is an arithmetic number, because the mean of its divisors is an integer number (4547664).

Almost surely, 2^45420555 is an apocalyptic number.

45420555 is a deficient number, since it is larger than the sum of its proper divisors (27342069).

45420555 is a wasteful number, since it uses less digits than its factorization.

45420555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 45420555 is about 6739.4773536232. The cubic root of 45420555 is about 356.7939477405.

The spelling of 45420555 in words is "forty-five million, four hundred twenty thousand, five hundred fifty-five".