2556522629 has 2 divisors, whose sum is σ = 2556522630. Its totient is φ = 2556522628.

The previous prime is 2556522593. The next prime is 2556522641. The reversal of 2556522629 is 9262256552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2391014404 + 165508225 = 48898^2 + 12865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2556522629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2556522629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2556522649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278261314 + 1278261315.

It is an arithmetic number, because the mean of its divisors is an integer number (1278261315).

Almost surely, 2^2556522629 is an apocalyptic number.

It is an amenable number.

2556522629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2556522629 is an equidigital number, since it uses as much as digits as its factorization.

2556522629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648000, while the sum is 44.

The square root of 2556522629 is about 50562.0670957982. The cubic root of 2556522629 is about 1367.3610786802.

The spelling of 2556522629 in words is "two billion, five hundred fifty-six million, five hundred twenty-two thousand, six hundred twenty-nine".