25429297339 has 4 divisors (see below), whose sum is σ = 25909095456. Its totient is φ = 24949499224.

The previous prime is 25429297337. The next prime is 25429297343. The reversal of 25429297339 is 93379292452.

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 25429297339 - 2¹ = 25429297337 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 25429297339.

It is not an unprimeable number, because it can be changed into a prime (25429297331) 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, 239898979 + ... + 239899084.

It is an arithmetic number, because the mean of its divisors is an integer number (6477273864).

Almost surely, 2^25429297339 is an apocalyptic number.

25429297339 is a deficient number, since it is larger than the sum of its proper divisors (479798117).

25429297339 is an equidigital number, since it uses as much as digits as its factorization.

25429297339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479798116.

The product of its digits is 7348320, while the sum is 55.

The spelling of 25429297339 in words is "twenty-five billion, four hundred twenty-nine million, two hundred ninety-seven thousand, three hundred thirty-nine".