23157255 has 32 divisors (see below), whose sum is σ = 40642560. Its totient is φ = 11166080.

The previous prime is 23157241. The next prime is 23157259. The reversal of 23157255 is 55275132.

It is not a de Polignac number, because 23157255 - 2⁵ = 23157223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23157259) 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 31 ways as a sum of consecutive naturals, for example, 48106 + ... + 48584.

It is an arithmetic number, because the mean of its divisors is an integer number (1270080).

Almost surely, 2^23157255 is an apocalyptic number.

23157255 is a deficient number, since it is larger than the sum of its proper divisors (17485305).

23157255 is a wasteful number, since it uses less digits than its factorization.

23157255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791.

The product of its digits is 10500, while the sum is 30.

The square root of 23157255 is about 4812.1985619881. The cubic root of 23157255 is about 285.0333602070.

The spelling of 23157255 in words is "twenty-three million, one hundred fifty-seven thousand, two hundred fifty-five".