45250090 has 16 divisors (see below), whose sum is σ = 86241672. Its totient is φ = 17035264.

The previous prime is 45250087. The next prime is 45250091. The reversal of 45250090 is 9005254.

45250090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 40793769 + 4456321 = 6387^2 + 2111^2 .

It is not an unprimeable number, because it can be changed into a prime (45250091) 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 7 ways as a sum of consecutive naturals, for example, 132919 + ... + 133258.

Almost surely, 2^45250090 is an apocalyptic number.

45250090 is a deficient number, since it is larger than the sum of its proper divisors (40991582).

45250090 is a wasteful number, since it uses less digits than its factorization.

45250090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266201.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 45250090 is about 6726.8187131808. The cubic root of 45250090 is about 356.3470346119.

The spelling of 45250090 in words is "forty-five million, two hundred fifty thousand, ninety".