25348431 has 4 divisors (see below), whose sum is σ = 33797912. Its totient is φ = 16898952.

The previous prime is 25348423. The next prime is 25348459. The reversal of 25348431 is 13484352.

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

It is not a de Polignac number, because 25348431 - 2³ = 25348423 is a prime.

It is a super-2 number, since 2×25348431² = 1285085908323522, 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 (25348471) 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, 4224736 + ... + 4224741.

It is an arithmetic number, because the mean of its divisors is an integer number (8449478).

Almost surely, 2^25348431 is an apocalyptic number.

25348431 is a deficient number, since it is larger than the sum of its proper divisors (8449481).

25348431 is an equidigital number, since it uses as much as digits as its factorization.

25348431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8449480.

The product of its digits is 11520, while the sum is 30.

The square root of 25348431 is about 5034.7225345594. The cubic root of 25348431 is about 293.7539359062.

It can be divided in two parts, 253 and 48431, that added together give a palindrome (48684).

The spelling of 25348431 in words is "twenty-five million, three hundred forty-eight thousand, four hundred thirty-one".