23423553 has 16 divisors (see below), whose sum is σ = 35640960. Its totient is φ = 15193008.

The previous prime is 23423551. The next prime is 23423563. The reversal of 23423553 is 35532432.

It is not a de Polignac number, because 23423553 - 2¹ = 23423551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23423551) 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 15 ways as a sum of consecutive naturals, for example, 10725 + ... + 12722.

It is an arithmetic number, because the mean of its divisors is an integer number (2227560).

Almost surely, 2^23423553 is an apocalyptic number.

It is an amenable number.

23423553 is a deficient number, since it is larger than the sum of its proper divisors (12217407).

23423553 is a wasteful number, since it uses less digits than its factorization.

23423553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23493 (or 23487 counting only the distinct ones).

The product of its digits is 10800, while the sum is 27.

The square root of 23423553 is about 4839.7885284380. The cubic root of 23423553 is about 286.1217837586.

Adding to 23423553 its reverse (35532432), we get a palindrome (58955985).

The spelling of 23423553 in words is "twenty-three million, four hundred twenty-three thousand, five hundred fifty-three".