23257655 has 8 divisors (see below), whose sum is σ = 28081392. Its totient is φ = 18491328.

The previous prime is 23257651. The next prime is 23257673. The reversal of 23257655 is 55675232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23257655 - 2² = 23257651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23257651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13454 + ... + 15083.

It is an arithmetic number, because the mean of its divisors is an integer number (3510174).

Almost surely, 2^23257655 is an apocalyptic number.

23257655 is a deficient number, since it is larger than the sum of its proper divisors (4823737).

23257655 is a wasteful number, since it uses less digits than its factorization.

23257655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28705.

The product of its digits is 63000, while the sum is 35.

The square root of 23257655 is about 4822.6191016915. The cubic root of 23257655 is about 285.4446940941. Note that the first 3 decimals are identical.

The spelling of 23257655 in words is "twenty-three million, two hundred fifty-seven thousand, six hundred fifty-five".