25201231 has 8 divisors (see below), whose sum is σ = 27648000. Its totient is φ = 22780440.

The previous prime is 25201199. The next prime is 25201247. The reversal of 25201231 is 13210252.

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 25201231 - 2⁵ = 25201199 is a prime.

It is a super-2 number, since 2×25201231² = 1270204087830722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25201331) 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, 4431 + ... + 8368.

It is an arithmetic number, because the mean of its divisors is an integer number (3456000).

Almost surely, 2^25201231 is an apocalyptic number.

25201231 is a deficient number, since it is larger than the sum of its proper divisors (2446769).

25201231 is a wasteful number, since it uses less digits than its factorization.

25201231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12989.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 25201231 is about 5020.0827682420. The cubic root of 25201231 is about 293.1842155589.

Adding to 25201231 its reverse (13210252), we get a palindrome (38411483).

The spelling of 25201231 in words is "twenty-five million, two hundred one thousand, two hundred thirty-one".