90455573 has 16 divisors (see below), whose sum is σ = 102103680. Its totient is φ = 79510464.

The previous prime is 90455569. The next prime is 90455579. The reversal of 90455573 is 37555409.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 90455573 - 2² = 90455569 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90455579) 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, 84083 + ... + 85151.

It is an arithmetic number, because the mean of its divisors is an integer number (6381480).

Almost surely, 2^90455573 is an apocalyptic number.

It is an amenable number.

90455573 is a deficient number, since it is larger than the sum of its proper divisors (11648107).

90455573 is a wasteful number, since it uses less digits than its factorization.

90455573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388.

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 90455573 is about 9510.8134773005. The cubic root of 90455573 is about 448.8953531153.

The spelling of 90455573 in words is "ninety million, four hundred fifty-five thousand, five hundred seventy-three".