1255002653543 has 2 divisors, whose sum is σ = 1255002653544. Its totient is φ = 1255002653542.

The previous prime is 1255002653521. The next prime is 1255002653609. The reversal of 1255002653543 is 3453562005521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1255002653543 - 2⁶ = 1255002653479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255002653543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255002653843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627501326771 + 627501326772.

It is an arithmetic number, because the mean of its divisors is an integer number (627501326772).

Almost surely, 2^{1255002653543} is an apocalyptic number.

1255002653543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255002653543 is an equidigital number, since it uses as much as digits as its factorization.

1255002653543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 1255002653543 in words is "one trillion, two hundred fifty-five billion, two million, six hundred fifty-three thousand, five hundred forty-three".