23475855 has 32 divisors (see below), whose sum is σ = 40803840. Its totient is φ = 11456640.

The previous prime is 23475841. The next prime is 23475857. The reversal of 23475855 is 55857432.

It is not a de Polignac number, because 23475855 - 2¹⁶ = 23410319 is a prime.

It is a super-2 number, since 2×23475855² = 1102231535962050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23475857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25086 + ... + 26004.

It is an arithmetic number, because the mean of its divisors is an integer number (1275120).

Almost surely, 2^23475855 is an apocalyptic number.

23475855 is a deficient number, since it is larger than the sum of its proper divisors (17327985).

23475855 is a wasteful number, since it uses less digits than its factorization.

23475855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071.

The product of its digits is 168000, while the sum is 39.

The square root of 23475855 is about 4845.1888508086. The cubic root of 23475855 is about 286.3345840565.

The spelling of 23475855 in words is "twenty-three million, four hundred seventy-five thousand, eight hundred fifty-five".