25583262863 has 4 divisors (see below), whose sum is σ = 25587659160. Its totient is φ = 25578866568.

The previous prime is 25583262857. The next prime is 25583262877. The reversal of 25583262863 is 36826238552.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 25583262863 - 2¹⁰ = 25583261839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25583262853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2189408 + ... + 2201061.

It is an arithmetic number, because the mean of its divisors is an integer number (6396914790).

Almost surely, 2^25583262863 is an apocalyptic number.

25583262863 is a deficient number, since it is larger than the sum of its proper divisors (4396297).

25583262863 is an equidigital number, since it uses as much as digits as its factorization.

25583262863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396296.

The product of its digits is 4147200, while the sum is 50.

The spelling of 25583262863 in words is "twenty-five billion, five hundred eighty-three million, two hundred sixty-two thousand, eight hundred sixty-three".