25496197469 has 2 divisors, whose sum is σ = 25496197470. Its totient is φ = 25496197468.

The previous prime is 25496197381. The next prime is 25496197471. The reversal of 25496197469 is 96479169452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25392422500 + 103774969 = 159350^2 + 10187^2 .

It is a cyclic number.

It is not a de Polignac number, because 25496197469 - 2¹⁶ = 25496131933 is a prime.

It is a super-3 number, since 3×25496197469³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 25496197471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25496197369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12748098734 + 12748098735.

It is an arithmetic number, because the mean of its divisors is an integer number (12748098735).

Almost surely, 2^25496197469 is an apocalyptic number.

It is an amenable number.

25496197469 is a deficient number, since it is larger than the sum of its proper divisors (1).

25496197469 is an equidigital number, since it uses as much as digits as its factorization.

25496197469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29393280, while the sum is 62.

The spelling of 25496197469 in words is "twenty-five billion, four hundred ninety-six million, one hundred ninety-seven thousand, four hundred sixty-nine".