556505051 has 16 divisors (see below), whose sum is σ = 583994880. Its totient is φ = 529864800.

The previous prime is 556505021. The next prime is 556505057. The reversal of 556505051 is 150505655.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556505051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 556504999 and 556505017.

It is not an unprimeable number, because it can be changed into a prime (556505057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279080 + ... + 281066.

It is an arithmetic number, because the mean of its divisors is an integer number (36499680).

Almost surely, 2^556505051 is an apocalyptic number.

556505051 is a deficient number, since it is larger than the sum of its proper divisors (27489829).

556505051 is a wasteful number, since it uses less digits than its factorization.

556505051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194.

The product of its (nonzero) digits is 18750, while the sum is 32.

The square root of 556505051 is about 23590.3592808588. The cubic root of 556505051 is about 822.5387563153.

The spelling of 556505051 in words is "five hundred fifty-six million, five hundred five thousand, fifty-one".