25426375247069 has 2 divisors, whose sum is σ = 25426375247070. Its totient is φ = 25426375247068.

The previous prime is 25426375247003. The next prime is 25426375247083. The reversal of 25426375247069 is 96074257362452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21732052915225 + 3694322331844 = 4661765^2 + 1922062^2 .

It is a cyclic number.

It is not a de Polignac number, because 25426375247069 - 2¹⁶ = 25426375181533 is a prime.

It is a super-2 number, since 2×25426375247069² (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 (25426375240069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12713187623534 + 12713187623535.

It is an arithmetic number, because the mean of its divisors is an integer number (12713187623535).

Almost surely, 2^{25426375247069} is an apocalyptic number.

It is an amenable number.

25426375247069 is a deficient number, since it is larger than the sum of its proper divisors (1).

25426375247069 is an equidigital number, since it uses as much as digits as its factorization.

25426375247069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 152409600, while the sum is 62.

The spelling of 25426375247069 in words is "twenty-five trillion, four hundred twenty-six billion, three hundred seventy-five million, two hundred forty-seven thousand, sixty-nine".