25495905 has 8 divisors (see below), whose sum is σ = 40793472. Its totient is φ = 13597808.

The previous prime is 25495889. The next prime is 25495913. The reversal of 25495905 is 50959452.

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 25495905 - 2⁴ = 25495889 is a prime.

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, 849849 + ... + 849878.

It is an arithmetic number, because the mean of its divisors is an integer number (5099184).

Almost surely, 2^25495905 is an apocalyptic number.

It is an amenable number.

25495905 is a deficient number, since it is larger than the sum of its proper divisors (15297567).

25495905 is a wasteful number, since it uses less digits than its factorization.

25495905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699735.

The product of its (nonzero) digits is 81000, while the sum is 39.

The square root of 25495905 is about 5049.3469874826. The cubic root of 25495905 is about 294.3225092465.

The spelling of 25495905 in words is "twenty-five million, four hundred ninety-five thousand, nine hundred five".