23340553 has 4 divisors (see below), whose sum is σ = 23511060. Its totient is φ = 23170048.

The previous prime is 23340547. The next prime is 23340587. The reversal of 23340553 is 35504332.

It is a happy number.

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 19642624 + 3697929 = 4432^2 + 1923^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23340553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23340503) 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, 85048 + ... + 85321.

It is an arithmetic number, because the mean of its divisors is an integer number (5877765).

Almost surely, 2^23340553 is an apocalyptic number.

It is an amenable number.

23340553 is a deficient number, since it is larger than the sum of its proper divisors (170507).

23340553 is a wasteful number, since it uses less digits than its factorization.

23340553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170506.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 23340553 is about 4831.2061640961. The cubic root of 23340553 is about 285.7834318240.

Adding to 23340553 its reverse (35504332), we get a palindrome (58844885).

The spelling of 23340553 in words is "twenty-three million, three hundred forty thousand, five hundred fifty-three".