25565142327 has 8 divisors (see below), whose sum is σ = 34089868800. Its totient is φ = 17041922040.

The previous prime is 25565142313. The next prime is 25565142349. The reversal of 25565142327 is 72324156552.

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

It is not a de Polignac number, because 25565142327 - 2²⁸ = 25296706871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25565142227) 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, 336327 + ... + 405272.

It is an arithmetic number, because the mean of its divisors is an integer number (4261233600).

Almost surely, 2^25565142327 is an apocalyptic number.

25565142327 is a deficient number, since it is larger than the sum of its proper divisors (8524726473).

25565142327 is a wasteful number, since it uses less digits than its factorization.

25565142327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753093.

The product of its digits is 504000, while the sum is 42.

Adding to 25565142327 its reverse (72324156552), we get a palindrome (97889298879).

The spelling of 25565142327 in words is "twenty-five billion, five hundred sixty-five million, one hundred forty-two thousand, three hundred twenty-seven".