25954385159 has 4 divisors (see below), whose sum is σ = 26282921760. Its totient is φ = 25625848560.

The previous prime is 25954385143. The next prime is 25954385189. The reversal of 25954385159 is 95158345952.

It is a happy number.

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 25954385159 - 2⁴ = 25954385143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25954385189) 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, 164268182 + ... + 164268339.

It is an arithmetic number, because the mean of its divisors is an integer number (6570730440).

Almost surely, 2^25954385159 is an apocalyptic number.

25954385159 is a deficient number, since it is larger than the sum of its proper divisors (328536601).

25954385159 is an equidigital number, since it uses as much as digits as its factorization.

25954385159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328536600.

The product of its digits is 9720000, while the sum is 56.

The spelling of 25954385159 in words is "twenty-five billion, nine hundred fifty-four million, three hundred eighty-five thousand, one hundred fifty-nine".