25460409 has 8 divisors (see below), whose sum is σ = 36558592. Its totient is φ = 15667920.

The previous prime is 25460377. The next prime is 25460419. The reversal of 25460409 is 90406452.

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

It is not a de Polignac number, because 25460409 - 2⁵ = 25460377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25460419) 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, 326377 + ... + 326454.

It is an arithmetic number, because the mean of its divisors is an integer number (4569824).

Almost surely, 2^25460409 is an apocalyptic number.

It is an amenable number.

25460409 is a deficient number, since it is larger than the sum of its proper divisors (11098183).

25460409 is a wasteful number, since it uses less digits than its factorization.

25460409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652847.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 25460409 is about 5045.8308532887. The cubic root of 25460409 is about 294.1858582319.

The spelling of 25460409 in words is "twenty-five million, four hundred sixty thousand, four hundred nine".