23255505 has 80 divisors (see below), whose sum is σ = 51389184. Its totient is φ = 9797760.

The previous prime is 23255503. The next prime is 23255509. The reversal of 23255505 is 50555232.

It is not a de Polignac number, because 23255505 - 2¹ = 23255503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23255503) 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 79 ways as a sum of consecutive naturals, for example, 36540 + ... + 37170.

Almost surely, 2^23255505 is an apocalyptic number.

It is an amenable number.

23255505 is an abundant number, since it is smaller than the sum of its proper divisors (28133679).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23255505 is a wasteful number, since it uses less digits than its factorization.

23255505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 23255505 is about 4822.3961886183. The cubic root of 23255505 is about 285.4358980654.

The spelling of 23255505 in words is "twenty-three million, two hundred fifty-five thousand, five hundred five".