21452025255343 has 2 divisors, whose sum is σ = 21452025255344. Its totient is φ = 21452025255342.

The previous prime is 21452025255307. The next prime is 21452025255377. The reversal of 21452025255343 is 34355252025412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21452025255343 - 2²⁵ = 21451991700911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21452025255343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21452025255383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10726012627671 + 10726012627672.

It is an arithmetic number, because the mean of its divisors is an integer number (10726012627672).

Almost surely, 2^{21452025255343} is an apocalyptic number.

21452025255343 is a deficient number, since it is larger than the sum of its proper divisors (1).

21452025255343 is an equidigital number, since it uses as much as digits as its factorization.

21452025255343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440000, while the sum is 43.

The spelling of 21452025255343 in words is "twenty-one trillion, four hundred fifty-two billion, twenty-five million, two hundred fifty-five thousand, three hundred forty-three".