25363366401 has 4 divisors (see below), whose sum is σ = 33817821872. Its totient is φ = 16908910932.

The previous prime is 25363366381. The next prime is 25363366417. The reversal of 25363366401 is 10466336352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25363366401 - 2¹⁴ = 25363350017 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 25363366401.

It is not an unprimeable number, because it can be changed into a prime (25363366201) 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, 4227227731 + ... + 4227227736.

It is an arithmetic number, because the mean of its divisors is an integer number (8454455468).

Almost surely, 2^25363366401 is an apocalyptic number.

It is an amenable number.

25363366401 is a deficient number, since it is larger than the sum of its proper divisors (8454455471).

25363366401 is an equidigital number, since it uses as much as digits as its factorization.

25363366401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8454455470.

The product of its (nonzero) digits is 233280, while the sum is 39.

The spelling of 25363366401 in words is "twenty-five billion, three hundred sixty-three million, three hundred sixty-six thousand, four hundred one".