2552661439 has 2 divisors, whose sum is σ = 2552661440. Its totient is φ = 2552661438.

The previous prime is 2552661323. The next prime is 2552661451. The reversal of 2552661439 is 9341662552.

2552661439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2552661439 - 2⁷ = 2552661311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2552661395 and 2552661404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2552661479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276330719 + 1276330720.

It is an arithmetic number, because the mean of its divisors is an integer number (1276330720).

Almost surely, 2^2552661439 is an apocalyptic number.

2552661439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2552661439 is an equidigital number, since it uses as much as digits as its factorization.

2552661439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 43.

The square root of 2552661439 is about 50523.8699923116. The cubic root of 2552661439 is about 1366.6723435087.

The spelling of 2552661439 in words is "two billion, five hundred fifty-two million, six hundred sixty-one thousand, four hundred thirty-nine".