556055641 has 4 divisors (see below), whose sum is σ = 563094400. Its totient is φ = 549016884.

The previous prime is 556055639. The next prime is 556055651. The reversal of 556055641 is 146550655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146550655 = 5 ⋅29310131.

It is a cyclic number.

It is not a de Polignac number, because 556055641 - 2¹ = 556055639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 556055641.

It is not an unprimeable number, because it can be changed into a prime (556055651) 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 in 3 ways as a sum of consecutive naturals, for example, 3519261 + ... + 3519418.

It is an arithmetic number, because the mean of its divisors is an integer number (140773600).

Almost surely, 2^556055641 is an apocalyptic number.

It is an amenable number.

556055641 is a deficient number, since it is larger than the sum of its proper divisors (7038759).

556055641 is an equidigital number, since it uses as much as digits as its factorization.

556055641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7038758.

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 556055641 is about 23580.8320675925. The cubic root of 556055641 is about 822.3172808211.

The spelling of 556055641 in words is "five hundred fifty-six million, fifty-five thousand, six hundred forty-one".