25651085 has 8 divisors (see below), whose sum is σ = 30892536. Its totient is φ = 20446720.

The previous prime is 25651081. The next prime is 25651097. The reversal of 25651085 is 58015652.

It can be written as a sum of positive squares in 4 ways, for example, as 2399401 + 23251684 = 1549^2 + 4822^2 .

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

It is not a de Polignac number, because 25651085 - 2² = 25651081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25651081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7724 + ... + 10533.

It is an arithmetic number, because the mean of its divisors is an integer number (3861567).

Almost surely, 2^25651085 is an apocalyptic number.

It is an amenable number.

25651085 is a deficient number, since it is larger than the sum of its proper divisors (5241451).

25651085 is a wasteful number, since it uses less digits than its factorization.

25651085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18543.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 25651085 is about 5064.6900201296. The cubic root of 25651085 is about 294.9184299992.

The spelling of 25651085 in words is "twenty-five million, six hundred fifty-one thousand, eighty-five".