25531242541201 has 16 divisors (see below), whose sum is σ = 26457397747200. Its totient is φ = 24611578248960.

The previous prime is 25531242541097. The next prime is 25531242541229. The reversal of 25531242541201 is 10214524213552.

It is a cyclic number.

It is not a de Polignac number, because 25531242541201 - 2²⁵ = 25531208986769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25531242541291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18395641 + ... + 19734793.

It is an arithmetic number, because the mean of its divisors is an integer number (1653587359200).

Almost surely, 2^{25531242541201} is an apocalyptic number.

It is an amenable number.

25531242541201 is a deficient number, since it is larger than the sum of its proper divisors (926155205999).

25531242541201 is a wasteful number, since it uses less digits than its factorization.

25531242541201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341576.

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

Adding to 25531242541201 its reverse (10214524213552), we get a palindrome (35745766754753).

The spelling of 25531242541201 in words is "twenty-five trillion, five hundred thirty-one billion, two hundred forty-two million, five hundred forty-one thousand, two hundred one".