25145441 has 4 divisors (see below), whose sum is σ = 25272000. Its totient is φ = 25018884.

The previous prime is 25145401. The next prime is 25145443. The reversal of 25145441 is 14454152.

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 25145441 - 2¹⁰ = 25144417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25145441.

It is not an unprimeable number, because it can be changed into a prime (25145443) 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, 62981 + ... + 63378.

It is an arithmetic number, because the mean of its divisors is an integer number (6318000).

Almost surely, 2^25145441 is an apocalyptic number.

It is an amenable number.

25145441 is a deficient number, since it is larger than the sum of its proper divisors (126559).

25145441 is a wasteful number, since it uses less digits than its factorization.

25145441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126558.

The product of its digits is 3200, while the sum is 26.

The square root of 25145441 is about 5014.5230082232. The cubic root of 25145441 is about 292.9677071889.

Adding to 25145441 its reverse (14454152), we get a palindrome (39599593).

The spelling of 25145441 in words is "twenty-five million, one hundred forty-five thousand, four hundred forty-one".