556807133 has 2 divisors, whose sum is σ = 556807134. Its totient is φ = 556807132.

The previous prime is 556807091. The next prime is 556807157. The reversal of 556807133 is 331708655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 482812729 + 73994404 = 21973^2 + 8602^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556807133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556807033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278403566 + 278403567.

It is an arithmetic number, because the mean of its divisors is an integer number (278403567).

Almost surely, 2^556807133 is an apocalyptic number.

It is an amenable number.

556807133 is a deficient number, since it is larger than the sum of its proper divisors (1).

556807133 is an equidigital number, since it uses as much as digits as its factorization.

556807133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 556807133 is about 23596.7610701130. The cubic root of 556807133 is about 822.6875595213.

The spelling of 556807133 in words is "five hundred fifty-six million, eight hundred seven thousand, one hundred thirty-three".