25542441 has 12 divisors (see below), whose sum is σ = 38836720. Its totient is φ = 16131960.

The previous prime is 25542437. The next prime is 25542493. The reversal of 25542441 is 14424552.

It is not a de Polignac number, because 25542441 - 2² = 25542437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25542421) 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, 74515 + ... + 74856.

Almost surely, 2^25542441 is an apocalyptic number.

It is an amenable number.

25542441 is a deficient number, since it is larger than the sum of its proper divisors (13294279).

25542441 is a wasteful number, since it uses less digits than its factorization.

25542441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149396 (or 149393 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 25542441 is about 5053.9530073003. The cubic root of 25542441 is about 294.5014695876.

Adding to 25542441 its reverse (14424552), we get a palindrome (39966993).

The spelling of 25542441 in words is "twenty-five million, five hundred forty-two thousand, four hundred forty-one".