556536061 has 2 divisors, whose sum is σ = 556536062. Its totient is φ = 556536060.

The previous prime is 556536023. The next prime is 556536067. The reversal of 556536061 is 160635655.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 556488100 + 47961 = 23590^2 + 219^2 .

It is a cyclic number.

It is not a de Polignac number, because 556536061 - 2⁷ = 556535933 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556536061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556536067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278268030 + 278268031.

It is an arithmetic number, because the mean of its divisors is an integer number (278268031).

Almost surely, 2^556536061 is an apocalyptic number.

It is an amenable number.

556536061 is a deficient number, since it is larger than the sum of its proper divisors (1).

556536061 is an equidigital number, since it uses as much as digits as its factorization.

556536061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 556536061 is about 23591.0165317224. The cubic root of 556536061 is about 822.5540340761.

The spelling of 556536061 in words is "five hundred fifty-six million, five hundred thirty-six thousand, sixty-one".