90220533 has 8 divisors (see below), whose sum is σ = 129547488. Its totient is φ = 55520304.

The previous prime is 90220523. The next prime is 90220549. The reversal of 90220533 is 33502209.

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

It is not a de Polignac number, because 90220533 - 2⁹ = 90220021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90220523) 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, 1156635 + ... + 1156712.

It is an arithmetic number, because the mean of its divisors is an integer number (16193436).

Almost surely, 2^90220533 is an apocalyptic number.

It is an amenable number.

90220533 is a deficient number, since it is larger than the sum of its proper divisors (39326955).

90220533 is a wasteful number, since it uses less digits than its factorization.

90220533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313363.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 90220533 is about 9498.4489786491. The cubic root of 90220533 is about 448.5062122481.

The spelling of 90220533 in words is "ninety million, two hundred twenty thousand, five hundred thirty-three".