25552352442431 has 2 divisors, whose sum is σ = 25552352442432. Its totient is φ = 25552352442430.

The previous prime is 25552352442389. The next prime is 25552352442443. The reversal of 25552352442431 is 13424425325552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25552352442431 - 2¹⁴ = 25552352426047 is a prime.

It is a super-2 number, since 2×25552352442431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25552352442481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12776176221215 + 12776176221216.

It is an arithmetic number, because the mean of its divisors is an integer number (12776176221216).

Almost surely, 2^{25552352442431} is an apocalyptic number.

25552352442431 is a deficient number, since it is larger than the sum of its proper divisors (1).

25552352442431 is an equidigital number, since it uses as much as digits as its factorization.

25552352442431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760000, while the sum is 47.

Adding to 25552352442431 its reverse (13424425325552), we get a palindrome (38976777767983).

The spelling of 25552352442431 in words is "twenty-five trillion, five hundred fifty-two billion, three hundred fifty-two million, four hundred forty-two thousand, four hundred thirty-one".