23251725 has 144 divisors (see below), whose sum is σ = 53716800. Its totient is φ = 9797760.

The previous prime is 23251693. The next prime is 23251727. The reversal of 23251725 is 52715232.

It is not a de Polignac number, because 23251725 - 2⁵ = 23251693 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23251727) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 628407 + ... + 628443.

Almost surely, 2^23251725 is an apocalyptic number.

23251725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23251725 is an abundant number, since it is smaller than the sum of its proper divisors (30465075).

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

23251725 is a wasteful number, since it uses less digits than its factorization.

23251725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 71 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 23251725 is about 4822.0042513461. The cubic root of 23251725 is about 285.4204321050.

Adding to 23251725 its reverse (52715232), we get a palindrome (75966957).

The spelling of 23251725 in words is "twenty-three million, two hundred fifty-one thousand, seven hundred twenty-five".