23385505 has 16 divisors (see below), whose sum is σ = 32969664. Its totient is φ = 15698880.

The previous prime is 23385497. The next prime is 23385533. The reversal of 23385505 is 50558332.

It is not a de Polignac number, because 23385505 - 2³ = 23385497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15639 + ... + 17068.

It is an arithmetic number, because the mean of its divisors is an integer number (2060604).

Almost surely, 2^23385505 is an apocalyptic number.

It is an amenable number.

23385505 is a deficient number, since it is larger than the sum of its proper divisors (9584159).

23385505 is a wasteful number, since it uses less digits than its factorization.

23385505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32736.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 23385505 is about 4835.8561806572. The cubic root of 23385505 is about 285.9667793582.

The spelling of 23385505 in words is "twenty-three million, three hundred eighty-five thousand, five hundred five".