25536745 has 24 divisors (see below), whose sum is σ = 33941376. Its totient is φ = 18427968.

The previous prime is 25536743. The next prime is 25536751. The reversal of 25536745 is 54763552.

It is not a de Polignac number, because 25536745 - 2¹ = 25536743 is a prime.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25536743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39394 + ... + 40036.

It is an arithmetic number, because the mean of its divisors is an integer number (1414224).

Almost surely, 2^25536745 is an apocalyptic number.

It is an amenable number.

25536745 is a deficient number, since it is larger than the sum of its proper divisors (8404631).

25536745 is a wasteful number, since it uses less digits than its factorization.

25536745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 708 counting only the distinct ones).

The product of its digits is 126000, while the sum is 37.

The square root of 25536745 is about 5053.3894565925. The cubic root of 25536745 is about 294.4795765471.

The spelling of 25536745 in words is "twenty-five million, five hundred thirty-six thousand, seven hundred forty-five".