23505505 has 8 divisors (see below), whose sum is σ = 28894824. Its totient is φ = 18345600.

The previous prime is 23505497. The next prime is 23505539. The reversal of 23505505 is 50550532.

It can be written as a sum of positive squares in 4 ways, for example, as 2401 + 23503104 = 49^2 + 4848^2 .

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

It is not a de Polignac number, because 23505505 - 2³ = 23505497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23505505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57126 + ... + 57535.

It is an arithmetic number, because the mean of its divisors is an integer number (3611853).

Almost surely, 2^23505505 is an apocalyptic number.

It is an amenable number.

23505505 is a deficient number, since it is larger than the sum of its proper divisors (5389319).

23505505 is a wasteful number, since it uses less digits than its factorization.

23505505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114707.

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 23505505 is about 4848.2476215639. The cubic root of 23505505 is about 286.4550801820.

The spelling of 23505505 in words is "twenty-three million, five hundred five thousand, five hundred five".