23173525 has 12 divisors (see below), whose sum is σ = 29007072. Its totient is φ = 18363440.

The previous prime is 23173471. The next prime is 23173529. The reversal of 23173525 is 52537132.

It is not a de Polignac number, because 23173525 - 2⁹ = 23173013 is a prime.

It is a super-3 number, since 3×23173525³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23173493 and 23173502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23173529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1657 + ... + 7006.

It is an arithmetic number, because the mean of its divisors is an integer number (2417256).

Almost surely, 2^23173525 is an apocalyptic number.

23173525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23173525 is a deficient number, since it is larger than the sum of its proper divisors (5833547).

23173525 is a wasteful number, since it uses less digits than its factorization.

23173525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8780 (or 8775 counting only the distinct ones).

The product of its digits is 6300, while the sum is 28.

The square root of 23173525 is about 4813.8887606591. Note that the first 3 decimals coincide. The cubic root of 23173525 is about 285.1000982136.

The spelling of 23173525 in words is "twenty-three million, one hundred seventy-three thousand, five hundred twenty-five".