25276540573663 has 2 divisors, whose sum is σ = 25276540573664. Its totient is φ = 25276540573662.

The previous prime is 25276540573619. The next prime is 25276540573679. The reversal of 25276540573663 is 36637504567252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25276540573663 - 2⁴¹ = 23077517318111 is a prime.

It is a super-2 number, since 2×25276540573663² (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 (25276540573363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12638270286831 + 12638270286832.

It is an arithmetic number, because the mean of its divisors is an integer number (12638270286832).

Almost surely, 2^{25276540573663} is an apocalyptic number.

25276540573663 is a deficient number, since it is larger than the sum of its proper divisors (1).

25276540573663 is an equidigital number, since it uses as much as digits as its factorization.

25276540573663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512000, while the sum is 61.

The spelling of 25276540573663 in words is "twenty-five trillion, two hundred seventy-six billion, five hundred forty million, five hundred seventy-three thousand, six hundred sixty-three".