25455231 has 12 divisors (see below), whose sum is σ = 38704120. Its totient is φ = 16076880.

The previous prime is 25455229. The next prime is 25455253. The reversal of 25455231 is 13255452.

It is a happy number.

It is not a de Polignac number, because 25455231 - 2¹ = 25455229 is a prime.

It is a super-2 number, since 2×25455231² = 1295937570526722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25455195 and 25455204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25455281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74260 + ... + 74601.

Almost surely, 2^25455231 is an apocalyptic number.

25455231 is a deficient number, since it is larger than the sum of its proper divisors (13248889).

25455231 is a wasteful number, since it uses less digits than its factorization.

25455231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148886 (or 148883 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 25455231 is about 5045.3177303318. The cubic root of 25455231 is about 294.1659135713.

It can be divided in two parts, 2545 and 5231, that added together give a 5-th power (7776 = 6⁵).

The spelling of 25455231 in words is "twenty-five million, four hundred fifty-five thousand, two hundred thirty-one".