23155256 has 8 divisors (see below), whose sum is σ = 43416120. Its totient is φ = 11577624.

The previous prime is 23155247. The next prime is 23155271. The reversal of 23155256 is 65255132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1447196 + ... + 1447211.

It is an arithmetic number, because the mean of its divisors is an integer number (5427015).

Almost surely, 2^23155256 is an apocalyptic number.

It is an amenable number.

23155256 is a deficient number, since it is larger than the sum of its proper divisors (20260864).

23155256 is a wasteful number, since it uses less digits than its factorization.

23155256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894413 (or 2894409 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 23155256 is about 4811.9908561842. The cubic root of 23155256 is about 285.0251583413.

The spelling of 23155256 in words is "twenty-three million, one hundred fifty-five thousand, two hundred fifty-six".