25112231 has 8 divisors (see below), whose sum is σ = 26293680. Its totient is φ = 23951872.

The previous prime is 25112221. The next prime is 25112249. The reversal of 25112231 is 13221152.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25112231 is a prime.

It is a super-2 number, since 2×25112231² = 1261248291594722, 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 (25112221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2810 + ... + 7623.

It is an arithmetic number, because the mean of its divisors is an integer number (3286710).

Almost surely, 2^25112231 is an apocalyptic number.

25112231 is a deficient number, since it is larger than the sum of its proper divisors (1181449).

25112231 is a wasteful number, since it uses less digits than its factorization.

25112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10545.

The product of its digits is 120, while the sum is 17.

The square root of 25112231 is about 5011.2105323963. The cubic root of 25112231 is about 292.8386746009.

Adding to 25112231 its reverse (13221152), we get a palindrome (38333383).

The spelling of 25112231 in words is "twenty-five million, one hundred twelve thousand, two hundred thirty-one".