90532273 has 4 divisors (see below), whose sum is σ = 97496308. Its totient is φ = 83568240.

The previous prime is 90532249. The next prime is 90532297. The reversal of 90532273 is 37223509.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (90532249) and next prime (90532297).

It can be written as a sum of positive squares in 2 ways, for example, as 20358144 + 70174129 = 4512^2 + 8377^2 .

It is a cyclic number.

It is not a de Polignac number, because 90532273 - 2⁵ = 90532241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90532213) 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, 3481998 + ... + 3482023.

It is an arithmetic number, because the mean of its divisors is an integer number (24374077).

Almost surely, 2^90532273 is an apocalyptic number.

It is an amenable number.

90532273 is a deficient number, since it is larger than the sum of its proper divisors (6964035).

90532273 is a wasteful number, since it uses less digits than its factorization.

90532273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6964034.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 90532273 is about 9514.8448752463. The cubic root of 90532273 is about 449.0221945600.

The spelling of 90532273 in words is "ninety million, five hundred thirty-two thousand, two hundred seventy-three".