23555313 has 8 divisors (see below), whose sum is σ = 34896800. Its totient is φ = 15703524.

The previous prime is 23555281. The next prime is 23555339. The reversal of 23555313 is 31355532.

It is not a de Polignac number, because 23555313 - 2⁵ = 23555281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 872419 = 23555313 / (2 + 3 + 5 + 5 + 5 + 3 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23555393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436183 + ... + 436236.

It is an arithmetic number, because the mean of its divisors is an integer number (4362100).

Almost surely, 2^23555313 is an apocalyptic number.

It is an amenable number.

23555313 is a deficient number, since it is larger than the sum of its proper divisors (11341487).

23555313 is an equidigital number, since it uses as much as digits as its factorization.

23555313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872428 (or 872422 counting only the distinct ones).

The product of its digits is 6750, while the sum is 27.

The square root of 23555313 is about 4853.3816046134. The cubic root of 23555313 is about 286.6572695375.

The spelling of 23555313 in words is "twenty-three million, five hundred fifty-five thousand, three hundred thirteen".