25211420524135 has 8 divisors (see below), whose sum is σ = 30265536362976. Its totient is φ = 20161248596640.

The previous prime is 25211420524133. The next prime is 25211420524177. The reversal of 25211420524135 is 53142502411252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25211420524135 - 2¹ = 25211420524133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25211420524094 and 25211420524103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25211420524133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985963771 + ... + 985989340.

It is an arithmetic number, because the mean of its divisors is an integer number (3783192045372).

Almost surely, 2^{25211420524135} is an apocalyptic number.

25211420524135 is a deficient number, since it is larger than the sum of its proper divisors (5054115838841).

25211420524135 is a wasteful number, since it uses less digits than its factorization.

25211420524135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971955673.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 25211420524135 its reverse (53142502411252), we get a palindrome (78353922935387).

The spelling of 25211420524135 in words is "twenty-five trillion, two hundred eleven billion, four hundred twenty million, five hundred twenty-four thousand, one hundred thirty-five".