9120553 has 4 divisors (see below), whose sum is σ = 9822148. Its totient is φ = 8418960.

The previous prime is 9120533. The next prime is 9120563. The reversal of 9120553 is 3550219.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5631129 + 3489424 = 2373^2 + 1868^2 .

It is a cyclic number.

It is not a de Polignac number, because 9120553 - 2⁵ = 9120521 is a prime.

It is a super-5 number, since 5×9120553⁵ (a number of 36 digits) contains 55555 as substring.

It is a Duffinian number.

9120553 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9120533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350778 + ... + 350803.

It is an arithmetic number, because the mean of its divisors is an integer number (2455537).

Almost surely, 2^9120553 is an apocalyptic number.

It is an amenable number.

9120553 is a deficient number, since it is larger than the sum of its proper divisors (701595).

9120553 is a wasteful number, since it uses less digits than its factorization.

9120553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701594.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 9120553 is about 3020.0253310196. The cubic root of 9120553 is about 208.9330081453.

The spelling of 9120553 in words is "nine million, one hundred twenty thousand, five hundred fifty-three".