25576260287 has 4 divisors (see below), whose sum is σ = 25576634856. Its totient is φ = 25575885720.

The previous prime is 25576260271. The next prime is 25576260299. The reversal of 25576260287 is 78206267552.

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 25576260287 - 2⁴ = 25576260271 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 (25576260187) 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, 52553 + ... + 232194.

It is an arithmetic number, because the mean of its divisors is an integer number (6394158714).

Almost surely, 2^25576260287 is an apocalyptic number.

25576260287 is a deficient number, since it is larger than the sum of its proper divisors (374569).

25576260287 is an equidigital number, since it uses as much as digits as its factorization.

25576260287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374568.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 25576260287 in words is "twenty-five billion, five hundred seventy-six million, two hundred sixty thousand, two hundred eighty-seven".