25838577065 has 8 divisors (see below), whose sum is σ = 35435762880. Its totient is φ = 17717881392.

The previous prime is 25838577029. The next prime is 25838577139. The reversal of 25838577065 is 56077583852.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25838577065 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25838577065.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369122495 + ... + 369122564.

It is an arithmetic number, because the mean of its divisors is an integer number (4429470360).

Almost surely, 2^25838577065 is an apocalyptic number.

It is an amenable number.

25838577065 is a deficient number, since it is larger than the sum of its proper divisors (9597185815).

25838577065 is an equidigital number, since it uses as much as digits as its factorization.

25838577065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738245071.

The product of its (nonzero) digits is 14112000, while the sum is 56.

The spelling of 25838577065 in words is "twenty-five billion, eight hundred thirty-eight million, five hundred seventy-seven thousand, sixty-five".