25988057 has 4 divisors (see below), whose sum is σ = 26002356. Its totient is φ = 25973760.

The previous prime is 25988051. The next prime is 25988099. The reversal of 25988057 is 75088952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3225616 + 22762441 = 1796^2 + 4771^2 .

It is a cyclic number.

It is not a de Polignac number, because 25988057 - 2⁴ = 25988041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25987999 and 25988017.

It is not an unprimeable number, because it can be changed into a prime (25988051) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3944 + ... + 8217.

It is an arithmetic number, because the mean of its divisors is an integer number (6500589).

Almost surely, 2^25988057 is an apocalyptic number.

It is an amenable number.

25988057 is a deficient number, since it is larger than the sum of its proper divisors (14299).

25988057 is a wasteful number, since it uses less digits than its factorization.

25988057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14298.

The product of its (nonzero) digits is 201600, while the sum is 44.

The square root of 25988057 is about 5097.8482715750. The cubic root of 25988057 is about 296.2042395211.

The spelling of 25988057 in words is "twenty-five million, nine hundred eighty-eight thousand, fifty-seven".