25478841 has 8 divisors (see below), whose sum is σ = 34694784. Its totient is φ = 16624400.

The previous prime is 25478821. The next prime is 25478857. The reversal of 25478841 is 14887452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25478841 - 2⁵ = 25478809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25478841.

It is not an unprimeable number, because it can be changed into a prime (25478821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90210 + ... + 90491.

It is an arithmetic number, because the mean of its divisors is an integer number (4336848).

Almost surely, 2^25478841 is an apocalyptic number.

It is an amenable number.

25478841 is a deficient number, since it is larger than the sum of its proper divisors (9215943).

25478841 is a wasteful number, since it uses less digits than its factorization.

25478841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180751.

The product of its digits is 71680, while the sum is 39.

The square root of 25478841 is about 5047.6569812142. The cubic root of 25478841 is about 294.2568328151.

The spelling of 25478841 in words is "twenty-five million, four hundred seventy-eight thousand, eight hundred forty-one".