25478461 has 8 divisors (see below), whose sum is σ = 27108864. Its totient is φ = 23862720.

The previous prime is 25478437. The next prime is 25478471. The reversal of 25478461 is 16487452.

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 25478461 - 2⁵ = 25478429 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 25478461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25478471) 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, 36 + ... + 7138.

It is an arithmetic number, because the mean of its divisors is an integer number (3388608).

Almost surely, 2^25478461 is an apocalyptic number.

It is an amenable number.

25478461 is a deficient number, since it is larger than the sum of its proper divisors (1630403).

25478461 is a wasteful number, since it uses less digits than its factorization.

25478461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7331.

The product of its digits is 53760, while the sum is 37.

The square root of 25478461 is about 5047.6193398473. The cubic root of 25478461 is about 294.2553699260.

The spelling of 25478461 in words is "twenty-five million, four hundred seventy-eight thousand, four hundred sixty-one".