23525405 has 8 divisors (see below), whose sum is σ = 28394712. Its totient is φ = 18710848.

The previous prime is 23525387. The next prime is 23525413. The reversal of 23525405 is 50452532.

It can be written as a sum of positive squares in 4 ways, for example, as 7252249 + 16273156 = 2693^2 + 4034^2 .

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 23525405 - 2²² = 19331101 is a prime.

It is a Duffinian number.

It is a congruent 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, 12734 + ... + 14463.

It is an arithmetic number, because the mean of its divisors is an integer number (3549339).

Almost surely, 2^23525405 is an apocalyptic number.

It is an amenable number.

23525405 is a deficient number, since it is larger than the sum of its proper divisors (4869307).

23525405 is a wasteful number, since it uses less digits than its factorization.

23525405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27375.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 23525405 is about 4850.2994752902. The cubic root of 23525405 is about 286.5358959762.

Adding to 23525405 its reverse (50452532), we get a palindrome (73977937).

The spelling of 23525405 in words is "twenty-three million, five hundred twenty-five thousand, four hundred five".