9090553 has 4 divisors (see below), whose sum is σ = 9096868. Its totient is φ = 9084240.

The previous prime is 9090551. The next prime is 9090583. The reversal of 9090553 is 3550909.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3550909 = 17 ⋅208877.

It can be written as a sum of positive squares in 2 ways, for example, as 4981824 + 4108729 = 2232^2 + 2027^2 .

It is a cyclic number.

It is not a de Polignac number, because 9090553 - 2¹ = 9090551 is a prime.

It is a Duffinian number.

9090553 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9090551) 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, 175 + ... + 4267.

It is an arithmetic number, because the mean of its divisors is an integer number (2274217).

Almost surely, 2^9090553 is an apocalyptic number.

It is an amenable number.

9090553 is a deficient number, since it is larger than the sum of its proper divisors (6315).

9090553 is a wasteful number, since it uses less digits than its factorization.

9090553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314.

The product of its (nonzero) digits is 6075, while the sum is 31.

The square root of 9090553 is about 3015.0543942025. The cubic root of 9090553 is about 208.7036771968.

The spelling of 9090553 in words is "nine million, ninety thousand, five hundred fifty-three".