5126556257 has 2 divisors, whose sum is σ = 5126556258. Its totient is φ = 5126556256.

The previous prime is 5126556251. The next prime is 5126556263. The reversal of 5126556257 is 7526556215.

It is a happy number.

5126556257 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (5126556251) and next prime (5126556263).

It can be written as a sum of positive squares in only one way, i.e., 5046113296 + 80442961 = 71036^2 + 8969^2 .

It is a cyclic number.

It is not a de Polignac number, because 5126556257 - 2¹² = 5126552161 is a prime.

It is not a weakly prime, because it can be changed into another prime (5126556251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2563278128 + 2563278129.

It is an arithmetic number, because the mean of its divisors is an integer number (2563278129).

Almost surely, 2^5126556257 is an apocalyptic number.

It is an amenable number.

5126556257 is a deficient number, since it is larger than the sum of its proper divisors (1).

5126556257 is an equidigital number, since it uses as much as digits as its factorization.

5126556257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 630000, while the sum is 44.

The square root of 5126556257 is about 71599.9738617271. The cubic root of 5126556257 is about 1724.2831167485.

The spelling of 5126556257 in words is "five billion, one hundred twenty-six million, five hundred fifty-six thousand, two hundred fifty-seven".