25742768527 has 12 divisors (see below), whose sum is σ = 29960472240. Its totient is φ = 22054322976.

The previous prime is 25742768521. The next prime is 25742768531. The reversal of 25742768527 is 72586724752.

It is a de Polignac number, because none of the positive numbers 2^k-25742768527 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 (25742768521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28918 + ... + 228739.

It is an arithmetic number, because the mean of its divisors is an integer number (2496706020).

Almost surely, 2^25742768527 is an apocalyptic number.

25742768527 is a deficient number, since it is larger than the sum of its proper divisors (4217703713).

25742768527 is a wasteful number, since it uses less digits than its factorization.

25742768527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259710 (or 259703 counting only the distinct ones).

The product of its digits is 13171200, while the sum is 55.

The spelling of 25742768527 in words is "twenty-five billion, seven hundred forty-two million, seven hundred sixty-eight thousand, five hundred twenty-seven".