25236264213761 has 2 divisors, whose sum is σ = 25236264213762. Its totient is φ = 25236264213760.

The previous prime is 25236264213679. The next prime is 25236264213847. The reversal of 25236264213761 is 16731246263252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24906397778161 + 329866435600 = 4990631^2 + 574340^2 .

It is a cyclic number.

It is not a de Polignac number, because 25236264213761 - 2¹⁴ = 25236264197377 is a prime.

It is not a weakly prime, because it can be changed into another prime (25236264213661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12618132106880 + 12618132106881.

It is an arithmetic number, because the mean of its divisors is an integer number (12618132106881).

Almost surely, 2^{25236264213761} is an apocalyptic number.

It is an amenable number.

25236264213761 is a deficient number, since it is larger than the sum of its proper divisors (1).

25236264213761 is an equidigital number, since it uses as much as digits as its factorization.

25236264213761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 50.

The spelling of 25236264213761 in words is "twenty-five trillion, two hundred thirty-six billion, two hundred sixty-four million, two hundred thirteen thousand, seven hundred sixty-one".