25131023 has 8 divisors (see below), whose sum is σ = 26060400. Its totient is φ = 24205888.

The previous prime is 25131017. The next prime is 25131031. The reversal of 25131023 is 32013152.

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 25131023 - 2⁸ = 25130767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25130992 and 25131010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25131523) 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, 15740 + ... + 17262.

It is an arithmetic number, because the mean of its divisors is an integer number (3257550).

Almost surely, 2^25131023 is an apocalyptic number.

25131023 is a deficient number, since it is larger than the sum of its proper divisors (929377).

25131023 is a wasteful number, since it uses less digits than its factorization.

25131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 25131023 is about 5013.0851778122. The cubic root of 25131023 is about 292.9117021264.

Adding to 25131023 its reverse (32013152), we get a palindrome (57144175).

The spelling of 25131023 in words is "twenty-five million, one hundred thirty-one thousand, twenty-three".