2555420230439 has 2 divisors, whose sum is σ = 2555420230440. Its totient is φ = 2555420230438.

The previous prime is 2555420230427. The next prime is 2555420230459. The reversal of 2555420230439 is 9340320245552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2555420230439 - 2⁴ = 2555420230423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2555420230439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2555420230459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277710115219 + 1277710115220.

It is an arithmetic number, because the mean of its divisors is an integer number (1277710115220).

Almost surely, 2^{2555420230439} is an apocalyptic number.

2555420230439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555420230439 is an equidigital number, since it uses as much as digits as its factorization.

2555420230439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 2555420230439 in words is "two trillion, five hundred fifty-five billion, four hundred twenty million, two hundred thirty thousand, four hundred thirty-nine".