25451240041231 has 4 divisors (see below), whose sum is σ = 26328869008200. Its totient is φ = 24573611074264.

The previous prime is 25451240041211. The next prime is 25451240041237. The reversal of 25451240041231 is 13214004215452.

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 25451240041231 - 2¹⁵ = 25451240008463 is a prime.

It is a super-2 number, since 2×25451240041231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25451240041237) 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, 438814483441 + ... + 438814483498.

It is an arithmetic number, because the mean of its divisors is an integer number (6582217252050).

Almost surely, 2^{25451240041231} is an apocalyptic number.

25451240041231 is a deficient number, since it is larger than the sum of its proper divisors (877628966969).

25451240041231 is an equidigital number, since it uses as much as digits as its factorization.

25451240041231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877628966968.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 25451240041231 its reverse (13214004215452), we get a palindrome (38665244256683).

The spelling of 25451240041231 in words is "twenty-five trillion, four hundred fifty-one billion, two hundred forty million, forty-one thousand, two hundred thirty-one".