556266012553 has 2 divisors, whose sum is σ = 556266012554. Its totient is φ = 556266012552.

The previous prime is 556266012529. The next prime is 556266012587. The reversal of 556266012553 is 355210662655.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 546812923024 + 9453089529 = 739468^2 + 97227^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556266012553 is a prime.

It is a super-2 number, since 2×556266012553² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (556266012593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278133006276 + 278133006277.

It is an arithmetic number, because the mean of its divisors is an integer number (278133006277).

Almost surely, 2^556266012553 is an apocalyptic number.

It is an amenable number.

556266012553 is a deficient number, since it is larger than the sum of its proper divisors (1).

556266012553 is an equidigital number, since it uses as much as digits as its factorization.

556266012553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 556266012553 in words is "five hundred fifty-six billion, two hundred sixty-six million, twelve thousand, five hundred fifty-three".