45455090 has 8 divisors (see below), whose sum is σ = 81819180. Its totient is φ = 18182032.

The previous prime is 45455089. The next prime is 45455117. The reversal of 45455090 is 9055454.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45333289 + 121801 = 6733^2 + 349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2272745 + ... + 2272764.

Almost surely, 2^45455090 is an apocalyptic number.

45455090 is a deficient number, since it is larger than the sum of its proper divisors (36364090).

45455090 is a wasteful number, since it uses less digits than its factorization.

45455090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545516.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 45455090 is about 6742.0390090832. The cubic root of 45455090 is about 356.8843528986.

The spelling of 45455090 in words is "forty-five million, four hundred fifty-five thousand, ninety".