25244521054811 has 4 divisors (see below), whose sum is σ = 25375321682232. Its totient is φ = 25113720427392.

The previous prime is 25244521054789. The next prime is 25244521054813. The reversal of 25244521054811 is 11845012544252.

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 25244521054811 - 2²⁶ = 25244453945947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25244521054813) 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, 65400313421 + ... + 65400313806.

It is an arithmetic number, because the mean of its divisors is an integer number (6343830420558).

Almost surely, 2^{25244521054811} is an apocalyptic number.

25244521054811 is a deficient number, since it is larger than the sum of its proper divisors (130800627421).

25244521054811 is a wasteful number, since it uses less digits than its factorization.

25244521054811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130800627420.

The product of its (nonzero) digits is 512000, while the sum is 44.

The spelling of 25244521054811 in words is "twenty-five trillion, two hundred forty-four billion, five hundred twenty-one million, fifty-four thousand, eight hundred eleven".