25265805 has 8 divisors (see below), whose sum is σ = 40425312. Its totient is φ = 13475088.

The previous prime is 25265771. The next prime is 25265809. The reversal of 25265805 is 50856252.

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

It is not a de Polignac number, because 25265805 - 2⁸ = 25265549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25265809) 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, 842179 + ... + 842208.

It is an arithmetic number, because the mean of its divisors is an integer number (5053164).

Almost surely, 2^25265805 is an apocalyptic number.

It is an amenable number.

25265805 is a deficient number, since it is larger than the sum of its proper divisors (15159507).

25265805 is a wasteful number, since it uses less digits than its factorization.

25265805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684395.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 25265805 is about 5026.5102208192. The cubic root of 25265805 is about 293.4344140566.

The spelling of 25265805 in words is "twenty-five million, two hundred sixty-five thousand, eight hundred five".