45240055 has 16 divisors (see below), whose sum is σ = 62152704. Its totient is φ = 30967200.

The previous prime is 45240047. The next prime is 45240073. The reversal of 45240055 is 55004254.

It is not a de Polignac number, because 45240055 - 2³ = 45240047 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 38730 + ... + 39880.

It is an arithmetic number, because the mean of its divisors is an integer number (3884544).

Almost surely, 2^45240055 is an apocalyptic number.

45240055 is a deficient number, since it is larger than the sum of its proper divisors (16912649).

45240055 is a wasteful number, since it uses less digits than its factorization.

45240055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 45240055 is about 6726.0727768885. The cubic root of 45240055 is about 356.3206905990.

It can be divided in two parts, 45 and 240055, that added together give a square (240100 = 490²).

The spelling of 45240055 in words is "forty-five million, two hundred forty thousand, fifty-five".