25342268443 has 4 divisors (see below), whose sum is σ = 25412860080. Its totient is φ = 25271676808.

The previous prime is 25342268437. The next prime is 25342268453. The reversal of 25342268443 is 34486224352.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25342268443 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 25342268443.

It is not an unprimeable number, because it can be changed into a prime (25342268453) 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, 35295280 + ... + 35295997.

It is an arithmetic number, because the mean of its divisors is an integer number (6353215020).

Almost surely, 2^25342268443 is an apocalyptic number.

25342268443 is a deficient number, since it is larger than the sum of its proper divisors (70591637).

25342268443 is an equidigital number, since it uses as much as digits as its factorization.

25342268443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70591636.

The product of its digits is 1105920, while the sum is 43.

The spelling of 25342268443 in words is "twenty-five billion, three hundred forty-two million, two hundred sixty-eight thousand, four hundred forty-three".