25211452534441 has 4 divisors (see below), whose sum is σ = 26694479154132. Its totient is φ = 23728425914752.

The previous prime is 25211452534423. The next prime is 25211452534451. The reversal of 25211452534441 is 14443525411252.

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 12421423555216 + 12790028979225 = 3524404^2 + 3576315^2 .

It is a cyclic number.

It is not a de Polignac number, because 25211452534441 - 2⁷ = 25211452534313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25211452534451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741513309820 + ... + 741513309853.

It is an arithmetic number, because the mean of its divisors is an integer number (6673619788533).

Almost surely, 2^{25211452534441} is an apocalyptic number.

It is an amenable number.

25211452534441 is a deficient number, since it is larger than the sum of its proper divisors (1483026619691).

25211452534441 is a wasteful number, since it uses less digits than its factorization.

25211452534441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483026619690.

The product of its digits is 768000, while the sum is 43.

Adding to 25211452534441 its reverse (14443525411252), we get a palindrome (39654977945693).

The spelling of 25211452534441 in words is "twenty-five trillion, two hundred eleven billion, four hundred fifty-two million, five hundred thirty-four thousand, four hundred forty-one".