25252442823 has 4 divisors (see below), whose sum is σ = 33669923768. Its totient is φ = 16834961880.

The previous prime is 25252442801. The next prime is 25252442827. The reversal of 25252442823 is 32824425252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25252442823 - 2⁶ = 25252442759 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 (25252442827) 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, 4208740468 + ... + 4208740473.

It is an arithmetic number, because the mean of its divisors is an integer number (8417480942).

Almost surely, 2^25252442823 is an apocalyptic number.

25252442823 is a deficient number, since it is larger than the sum of its proper divisors (8417480945).

25252442823 is an equidigital number, since it uses as much as digits as its factorization.

25252442823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8417480944.

The product of its digits is 307200, while the sum is 39.

The spelling of 25252442823 in words is "twenty-five billion, two hundred fifty-two million, four hundred forty-two thousand, eight hundred twenty-three".