25905385 has 8 divisors (see below), whose sum is σ = 33912576. Its totient is φ = 18840240.

The previous prime is 25905377. The next prime is 25905391. The reversal of 25905385 is 58350952.

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

It is not a de Polignac number, because 25905385 - 2³ = 25905377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235449 + ... + 235558.

It is an arithmetic number, because the mean of its divisors is an integer number (4239072).

Almost surely, 2^25905385 is an apocalyptic number.

It is an amenable number.

25905385 is a deficient number, since it is larger than the sum of its proper divisors (8007191).

25905385 is a wasteful number, since it uses less digits than its factorization.

25905385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471023.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 25905385 is about 5089.7332936019. The cubic root of 25905385 is about 295.8898154845.

The spelling of 25905385 in words is "twenty-five million, nine hundred five thousand, three hundred eighty-five".