25155314801 has 4 divisors (see below), whose sum is σ = 25835188212. Its totient is φ = 24475441392.

The previous prime is 25155314773. The next prime is 25155314809. The reversal of 25155314801 is 10841355152.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20391554401 + 4763760400 = 142799^2 + 69020^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25155314801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25155314809) 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, 339936650 + ... + 339936723.

It is an arithmetic number, because the mean of its divisors is an integer number (6458797053).

Almost surely, 2^25155314801 is an apocalyptic number.

It is an amenable number.

25155314801 is a deficient number, since it is larger than the sum of its proper divisors (679873411).

25155314801 is an equidigital number, since it uses as much as digits as its factorization.

25155314801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679873410.

The product of its (nonzero) digits is 24000, while the sum is 35.

Adding to 25155314801 its reverse (10841355152), we get a palindrome (35996669953).

The spelling of 25155314801 in words is "twenty-five billion, one hundred fifty-five million, three hundred fourteen thousand, eight hundred one".