25727222664551 has 2 divisors, whose sum is σ = 25727222664552. Its totient is φ = 25727222664550.

The previous prime is 25727222664503. The next prime is 25727222664569. The reversal of 25727222664551 is 15546622272752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25727222664551 - 2¹⁴ = 25727222648167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25727222664571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12863611332275 + 12863611332276.

It is an arithmetic number, because the mean of its divisors is an integer number (12863611332276).

Almost surely, 2^{25727222664551} is an apocalyptic number.

25727222664551 is a deficient number, since it is larger than the sum of its proper divisors (1).

25727222664551 is an equidigital number, since it uses as much as digits as its factorization.

25727222664551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224000, while the sum is 56.

The spelling of 25727222664551 in words is "twenty-five trillion, seven hundred twenty-seven billion, two hundred twenty-two million, six hundred sixty-four thousand, five hundred fifty-one".