25484342399 has 4 divisors (see below), whose sum is σ = 25550881536. Its totient is φ = 25417803264.

The previous prime is 25484342357. The next prime is 25484342419. The reversal of 25484342399 is 99324348452.

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-25484342399 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 25484342399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25484342699) 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, 33268994 + ... + 33269759.

It is an arithmetic number, because the mean of its divisors is an integer number (6387720384).

Almost surely, 2^25484342399 is an apocalyptic number.

25484342399 is a deficient number, since it is larger than the sum of its proper divisors (66539137).

25484342399 is an equidigital number, since it uses as much as digits as its factorization.

25484342399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66539136.

The product of its digits is 7464960, while the sum is 53.

The spelling of 25484342399 in words is "twenty-five billion, four hundred eighty-four million, three hundred forty-two thousand, three hundred ninety-nine".