23272505 has 8 divisors (see below), whose sum is σ = 28027392. Its totient is φ = 18551088.

The previous prime is 23272493. The next prime is 23272547. The reversal of 23272505 is 50527232.

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 23272505 - 2¹⁰ = 23271481 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

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, 6809 + ... + 9638.

It is an arithmetic number, because the mean of its divisors is an integer number (3503424).

Almost surely, 2^23272505 is an apocalyptic number.

It is an amenable number.

23272505 is a deficient number, since it is larger than the sum of its proper divisors (4754887).

23272505 is a wasteful number, since it uses less digits than its factorization.

23272505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16735.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 23272505 is about 4824.1584758380. The cubic root of 23272505 is about 285.5054332623.

Adding to 23272505 its reverse (50527232), we get a palindrome (73799737).

The spelling of 23272505 in words is "twenty-three million, two hundred seventy-two thousand, five hundred five".