90559249 has 4 divisors (see below), whose sum is σ = 98791920. Its totient is φ = 82326580.

The previous prime is 90559243. The next prime is 90559253. The reversal of 90559249 is 94295509.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90559249 - 2³ = 90559241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90559241) 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 3 ways as a sum of consecutive naturals, for example, 4116319 + ... + 4116340.

It is an arithmetic number, because the mean of its divisors is an integer number (24697980).

Almost surely, 2^90559249 is an apocalyptic number.

It is an amenable number.

90559249 is a deficient number, since it is larger than the sum of its proper divisors (8232671).

90559249 is a wasteful number, since it uses less digits than its factorization.

90559249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8232670.

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 90559249 is about 9516.2623440088. The cubic root of 90559249 is about 449.0667886752.

The spelling of 90559249 in words is "ninety million, five hundred fifty-nine thousand, two hundred forty-nine".