2555587439 has 4 divisors (see below), whose sum is σ = 2571865224. Its totient is φ = 2539309656.

The previous prime is 2555587429. The next prime is 2555587471. The reversal of 2555587439 is 9347855552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2555587439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555587409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8138657 + ... + 8138970.

It is an arithmetic number, because the mean of its divisors is an integer number (642966306).

Almost surely, 2^2555587439 is an apocalyptic number.

2555587439 is a deficient number, since it is larger than the sum of its proper divisors (16277785).

2555587439 is a wasteful number, since it uses less digits than its factorization.

2555587439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16277784.

The product of its digits is 7560000, while the sum is 53.

The square root of 2555587439 is about 50552.8183091705. The cubic root of 2555587439 is about 1367.1943289518.

The spelling of 2555587439 in words is "two billion, five hundred fifty-five million, five hundred eighty-seven thousand, four hundred thirty-nine".