25856745 has 16 divisors (see below), whose sum is σ = 43804800. Its totient is φ = 12978944.

The previous prime is 25856737. The next prime is 25856767. The reversal of 25856745 is 54765852.

It is a cyclic number.

It is not a de Polignac number, because 25856745 - 2³ = 25856737 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25856697 and 25856706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50445 + ... + 50954.

It is an arithmetic number, because the mean of its divisors is an integer number (2737800).

Almost surely, 2^25856745 is an apocalyptic number.

It is an amenable number.

25856745 is a deficient number, since it is larger than the sum of its proper divisors (17948055).

25856745 is a wasteful number, since it uses less digits than its factorization.

25856745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101424.

The product of its digits is 336000, while the sum is 42.

The square root of 25856745 is about 5084.9528021408. The cubic root of 25856745 is about 295.7045117009.

The spelling of 25856745 in words is "twenty-five million, eight hundred fifty-six thousand, seven hundred forty-five".