25459568455 has 4 divisors (see below), whose sum is σ = 30551482152. Its totient is φ = 20367654760.

The previous prime is 25459568443. The next prime is 25459568467. The reversal of 25459568455 is 55486595452.

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

It is an interprime number because it is at equal distance from previous prime (25459568443) and next prime (25459568467).

It is not a de Polignac number, because 25459568455 - 2¹³ = 25459560263 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 25459568455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2545956841 + ... + 2545956850.

It is an arithmetic number, because the mean of its divisors is an integer number (7637870538).

Almost surely, 2^25459568455 is an apocalyptic number.

25459568455 is a deficient number, since it is larger than the sum of its proper divisors (5091913697).

25459568455 is an equidigital number, since it uses as much as digits as its factorization.

25459568455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091913696.

The product of its digits is 43200000, while the sum is 58.

The spelling of 25459568455 in words is "twenty-five billion, four hundred fifty-nine million, five hundred sixty-eight thousand, four hundred fifty-five".