55136255243 has 2 divisors, whose sum is σ = 55136255244. Its totient is φ = 55136255242.

The previous prime is 55136255221. The next prime is 55136255267. The reversal of 55136255243 is 34255263155.

55136255243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55136255243 - 2¹⁶ = 55136189707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55136255243.

It is not a weakly prime, because it can be changed into another prime (55136255143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27568127621 + 27568127622.

It is an arithmetic number, because the mean of its divisors is an integer number (27568127622).

Almost surely, 2^55136255243 is an apocalyptic number.

55136255243 is a deficient number, since it is larger than the sum of its proper divisors (1).

55136255243 is an equidigital number, since it uses as much as digits as its factorization.

55136255243 is an evil number, because the sum of its binary digits is even.

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

The spelling of 55136255243 in words is "fifty-five billion, one hundred thirty-six million, two hundred fifty-five thousand, two hundred forty-three".