556055505 has 12 divisors (see below), whose sum is σ = 963829620. Its totient is φ = 296562912.

The previous prime is 556055497. The next prime is 556055509. The reversal of 556055505 is 505550655.

556055505 is a `hidden beast` number, since 556 + 0 + 55 + 50 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 294877584 + 261177921 = 17172^2 + 16161^2 .

It is not a de Polignac number, because 556055505 - 2³ = 556055497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556055505.

It is not an unprimeable number, because it can be changed into a prime (556055509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6178350 + ... + 6178439.

It is an arithmetic number, because the mean of its divisors is an integer number (80319135).

Almost surely, 2^556055505 is an apocalyptic number.

It is an amenable number.

556055505 is a deficient number, since it is larger than the sum of its proper divisors (407774115).

556055505 is a wasteful number, since it uses less digits than its factorization.

556055505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12356800 (or 12356797 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 36.

The square root of 556055505 is about 23580.8291838943. The cubic root of 556055505 is about 822.3172137803.

The spelling of 556055505 in words is "five hundred fifty-six million, fifty-five thousand, five hundred five".