45105550 has 24 divisors (see below), whose sum is σ = 95882256. Its totient is φ = 15464640.

The previous prime is 45105547. The next prime is 45105569. The reversal of 45105550 is 5550154.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64087 + ... + 64786.

It is an arithmetic number, because the mean of its divisors is an integer number (3995094).

Almost surely, 2^45105550 is an apocalyptic number.

45105550 is an abundant number, since it is smaller than the sum of its proper divisors (50776706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45105550 is a wasteful number, since it uses less digits than its factorization.

45105550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128892 (or 128887 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 45105550 is about 6716.0665571449. The cubic root of 45105550 is about 355.9672096634.

The spelling of 45105550 in words is "forty-five million, one hundred five thousand, five hundred fifty".