25850745 has 80 divisors (see below), whose sum is σ = 50181120. Its totient is φ = 12700800.

The previous prime is 25850743. The next prime is 25850749. The reversal of 25850745 is 54705852.

It is a happy number.

25850745 is a `hidden beast` number, since 2 + 585 + 0 + 74 + 5 = 666.

It is not a de Polignac number, because 25850745 - 2¹ = 25850743 is a prime.

It is a super-2 number, since 2×25850745² = 1336522034110050, which contains 22 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25850743) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 364060 + ... + 364130.

It is an arithmetic number, because the mean of its divisors is an integer number (627264).

Almost surely, 2^25850745 is an apocalyptic number.

It is an amenable number.

25850745 is a deficient number, since it is larger than the sum of its proper divisors (24330375).

25850745 is a wasteful number, since it uses less digits than its factorization.

25850745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 25850745 is about 5084.3627919337. The cubic root of 25850745 is about 295.6816374074.

The spelling of 25850745 in words is "twenty-five million, eight hundred fifty thousand, seven hundred forty-five".