25704254071 has 4 divisors (see below), whose sum is σ = 25814572992. Its totient is φ = 25593935152.

The previous prime is 25704253961. The next prime is 25704254077. The reversal of 25704254071 is 17045240752.

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 25704254071 - 2¹¹ = 25704252023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25704254071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25704254077) 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, 55159111 + ... + 55159576.

It is an arithmetic number, because the mean of its divisors is an integer number (6453643248).

Almost surely, 2^25704254071 is an apocalyptic number.

25704254071 is a deficient number, since it is larger than the sum of its proper divisors (110318921).

25704254071 is a wasteful number, since it uses less digits than its factorization.

25704254071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110318920.

The product of its (nonzero) digits is 78400, while the sum is 37.

It can be divided in two parts, 257042 and 54071, that added together give a palindrome (311113).

The spelling of 25704254071 in words is "twenty-five billion, seven hundred four million, two hundred fifty-four thousand, seventy-one".