45020550 has 24 divisors (see below), whose sum is σ = 111651336. Its totient is φ = 12005440.

The previous prime is 45020543. The next prime is 45020551. The reversal of 45020550 is 5502054.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45020551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149919 + ... + 150218.

It is an arithmetic number, because the mean of its divisors is an integer number (4652139).

Almost surely, 2^45020550 is an apocalyptic number.

45020550 is an abundant number, since it is smaller than the sum of its proper divisors (66630786).

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

45020550 is a wasteful number, since it uses less digits than its factorization.

45020550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300152 (or 300147 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 45020550 is about 6709.7354642340. The cubic root of 45020550 is about 355.7434660295.

The spelling of 45020550 in words is "forty-five million, twenty thousand, five hundred fifty".