23042725 has 24 divisors (see below), whose sum is σ = 30380000. Its totient is φ = 17288640.

The previous prime is 23042713. The next prime is 23042729. The reversal of 23042725 is 52724032.

It is not a de Polignac number, because 23042725 - 2⁷ = 23042597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 23042725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23042729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65851 + ... + 66199.

Almost surely, 2^23042725 is an apocalyptic number.

23042725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23042725 is a deficient number, since it is larger than the sum of its proper divisors (7337275).

23042725 is a wasteful number, since it uses less digits than its factorization.

23042725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 23042725 is about 4800.2838457741. The cubic root of 23042725 is about 284.5626821279.

Adding to 23042725 its reverse (52724032), we get a palindrome (75766757).

It can be divided in two parts, 230427 and 25, that multiplied together give a palindrome (5760675).

The spelling of 23042725 in words is "twenty-three million, forty-two thousand, seven hundred twenty-five".