23525501 has 4 divisors (see below), whose sum is σ = 24909372. Its totient is φ = 22141632.

The previous prime is 23525479. The next prime is 23525519. The reversal of 23525501 is 10552532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16240900 + 7284601 = 4030^2 + 2699^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23525501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23525531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691910 + ... + 691943.

It is an arithmetic number, because the mean of its divisors is an integer number (6227343).

Almost surely, 2^23525501 is an apocalyptic number.

It is an amenable number.

23525501 is a deficient number, since it is larger than the sum of its proper divisors (1383871).

23525501 is a wasteful number, since it uses less digits than its factorization.

23525501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383870.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 23525501 is about 4850.3093715762. The cubic root of 23525501 is about 286.5362857308.

The spelling of 23525501 in words is "twenty-three million, five hundred twenty-five thousand, five hundred one".