25242541 has 4 divisors (see below), whose sum is σ = 25546752. Its totient is φ = 24938332.

The previous prime is 25242533. The next prime is 25242589. The reversal of 25242541 is 14524252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25242541 - 2³ = 25242533 is a prime.

It is a super-2 number, since 2×25242541² = 1274371752273362, 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 (25242341) 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, 151981 + ... + 152146.

It is an arithmetic number, because the mean of its divisors is an integer number (6386688).

Almost surely, 2^25242541 is an apocalyptic number.

It is an amenable number.

25242541 is a deficient number, since it is larger than the sum of its proper divisors (304211).

25242541 is an equidigital number, since it uses as much as digits as its factorization.

25242541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304210.

The product of its digits is 3200, while the sum is 25.

The square root of 25242541 is about 5024.1955574997. The cubic root of 25242541 is about 293.3443245135.

Adding to 25242541 its reverse (14524252), we get a palindrome (39766793).

The spelling of 25242541 in words is "twenty-five million, two hundred forty-two thousand, five hundred forty-one".