25548231 has 4 divisors (see below), whose sum is σ = 34064312. Its totient is φ = 17032152.

The previous prime is 25548221. The next prime is 25548287. The reversal of 25548231 is 13284552.

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

It is not a de Polignac number, because 25548231 - 2⁵ = 25548199 is a prime.

It is a super-2 number, since 2×25548231² = 1305424214458722, 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 (25548221) 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, 4258036 + ... + 4258041.

It is an arithmetic number, because the mean of its divisors is an integer number (8516078).

Almost surely, 2^25548231 is an apocalyptic number.

25548231 is a deficient number, since it is larger than the sum of its proper divisors (8516081).

25548231 is an equidigital number, since it uses as much as digits as its factorization.

25548231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8516080.

The product of its digits is 9600, while the sum is 30.

The square root of 25548231 is about 5054.5257937813. The cubic root of 25548231 is about 294.5237205891.

The spelling of 25548231 in words is "twenty-five million, five hundred forty-eight thousand, two hundred thirty-one".