25502042711 has 4 divisors (see below), whose sum is σ = 25507276632. Its totient is φ = 25496808792.

The previous prime is 25502042677. The next prime is 25502042719. The reversal of 25502042711 is 11724020552.

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 25502042711 - 2¹⁸ = 25501780567 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 (25502042719) 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, 2609645 + ... + 2619398.

It is an arithmetic number, because the mean of its divisors is an integer number (6376819158).

Almost surely, 2^25502042711 is an apocalyptic number.

25502042711 is a deficient number, since it is larger than the sum of its proper divisors (5233921).

25502042711 is an equidigital number, since it uses as much as digits as its factorization.

25502042711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5233920.

The product of its (nonzero) digits is 5600, while the sum is 29.

The spelling of 25502042711 in words is "twenty-five billion, five hundred two million, forty-two thousand, seven hundred eleven".