25852985 has 8 divisors (see below), whose sum is σ = 31068360. Its totient is φ = 20652544.

The previous prime is 25852979. The next prime is 25852991. The reversal of 25852985 is 58925852.

It is an interprime number because it is at equal distance from previous prime (25852979) and next prime (25852991).

It can be written as a sum of positive squares in 4 ways, for example, as 1459264 + 24393721 = 1208^2 + 4939^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25852985 - 2⁴ = 25852969 is a prime.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521 + ... + 7209.

It is an arithmetic number, because the mean of its divisors is an integer number (3883545).

Almost surely, 2^25852985 is an apocalyptic number.

It is an amenable number.

25852985 is a deficient number, since it is larger than the sum of its proper divisors (5215375).

25852985 is an equidigital number, since it uses as much as digits as its factorization.

25852985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7467.

The product of its digits is 288000, while the sum is 44.

The square root of 25852985 is about 5084.5830704198. The cubic root of 25852985 is about 295.6901775576.

The spelling of 25852985 in words is "twenty-five million, eight hundred fifty-two thousand, nine hundred eighty-five".