25341985 has 16 divisors (see below), whose sum is σ = 32344272. Its totient is φ = 18995200.

The previous prime is 25341971. The next prime is 25341989. The reversal of 25341985 is 58914352.

It can be written as a sum of positive squares in 8 ways, for example, as 1517824 + 23824161 = 1232^2 + 4881^2 .

It is not a de Polignac number, because 25341985 - 2²¹ = 23244833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25341989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23355 + ... + 24415.

It is an arithmetic number, because the mean of its divisors is an integer number (2021517).

Almost surely, 2^25341985 is an apocalyptic number.

It is an amenable number.

25341985 is a deficient number, since it is larger than the sum of its proper divisors (7002287).

25341985 is a wasteful number, since it uses less digits than its factorization.

25341985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364.

The product of its digits is 43200, while the sum is 37.

The square root of 25341985 is about 5034.0823394140. The cubic root of 25341985 is about 293.7290336628.

The spelling of 25341985 in words is "twenty-five million, three hundred forty-one thousand, nine hundred eighty-five".