90275533 has 4 divisors (see below), whose sum is σ = 92375008. Its totient is φ = 88176060.

The previous prime is 90275527. The next prime is 90275543. The reversal of 90275533 is 33557209.

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 90275533 - 2²¹ = 88178381 is a prime.

It is a super-3 number, since 3×90275533³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90275513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1049673 + ... + 1049758.

It is an arithmetic number, because the mean of its divisors is an integer number (23093752).

Almost surely, 2^90275533 is an apocalyptic number.

It is an amenable number.

90275533 is a deficient number, since it is larger than the sum of its proper divisors (2099475).

90275533 is a wasteful number, since it uses less digits than its factorization.

90275533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099474.

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 90275533 is about 9501.3437470707. The cubic root of 90275533 is about 448.5973327869.

The spelling of 90275533 in words is "ninety million, two hundred seventy-five thousand, five hundred thirty-three".