45550510090 has 32 divisors (see below), whose sum is σ = 87046779600. Its totient is φ = 17102429184.

The previous prime is 45550510051. The next prime is 45550510099. The reversal of 45550510090 is 9001505554.

It can be written as a sum of positive squares in 8 ways, for example, as 28216944441 + 17333565649 = 167979^2 + 131657^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (45550510099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295765 + ... + 422584.

Almost surely, 2^45550510090 is an apocalyptic number.

45550510090 is a deficient number, since it is larger than the sum of its proper divisors (41496269510).

45550510090 is a wasteful number, since it uses less digits than its factorization.

45550510090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718746.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 45550510090 in words is "forty-five billion, five hundred fifty million, five hundred ten thousand, ninety".