25634063453 has 2 divisors, whose sum is σ = 25634063454. Its totient is φ = 25634063452.

The previous prime is 25634063449. The next prime is 25634063471. The reversal of 25634063453 is 35436043652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17287779289 + 8346284164 = 131483^2 + 91358^2 .

It is a cyclic number.

It is not a de Polignac number, because 25634063453 - 2² = 25634063449 is a prime.

It is a super-2 number, since 2×25634063453² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25634063453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25634063423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12817031726 + 12817031727.

It is an arithmetic number, because the mean of its divisors is an integer number (12817031727).

Almost surely, 2^25634063453 is an apocalyptic number.

It is an amenable number.

25634063453 is a deficient number, since it is larger than the sum of its proper divisors (1).

25634063453 is an equidigital number, since it uses as much as digits as its factorization.

25634063453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 41.

The spelling of 25634063453 in words is "twenty-five billion, six hundred thirty-four million, sixty-three thousand, four hundred fifty-three".