23525643 has 8 divisors (see below), whose sum is σ = 31835968. Its totient is φ = 15449544.

The previous prime is 23525639. The next prime is 23525657. The reversal of 23525643 is 34652532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23525643 - 2² = 23525639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23525643.

It is not an unprimeable number, because it can be changed into a prime (23521643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58321 + ... + 58722.

It is an arithmetic number, because the mean of its divisors is an integer number (3979496).

Almost surely, 2^23525643 is an apocalyptic number.

23525643 is a deficient number, since it is larger than the sum of its proper divisors (8310325).

23525643 is a wasteful number, since it uses less digits than its factorization.

23525643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117113.

The product of its digits is 21600, while the sum is 30.

The square root of 23525643 is about 4850.3240097956. The cubic root of 23525643 is about 286.5368622410.

It can be divided in two parts, 235 and 25643, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 23525643 in words is "twenty-three million, five hundred twenty-five thousand, six hundred forty-three".