90225583 has 8 divisors (see below), whose sum is σ = 106670880. Its totient is φ = 74669280.

The previous prime is 90225581. The next prime is 90225587. The reversal of 90225583 is 38552209.

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

It is not a de Polignac number, because 90225583 - 2¹ = 90225581 is a prime.

It is a super-3 number, since 3×90225583³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90225581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222028 + ... + 222433.

It is an arithmetic number, because the mean of its divisors is an integer number (13333860).

Almost surely, 2^90225583 is an apocalyptic number.

90225583 is a deficient number, since it is larger than the sum of its proper divisors (16445297).

90225583 is a wasteful number, since it uses less digits than its factorization.

90225583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444497.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 90225583 is about 9498.7148078043. The cubic root of 90225583 is about 448.5145803141.

The spelling of 90225583 in words is "ninety million, two hundred twenty-five thousand, five hundred eighty-three".