556041671 has 4 divisors (see below), whose sum is σ = 556126032. Its totient is φ = 555957312.

The previous prime is 556041667. The next prime is 556041677. The reversal of 556041671 is 176140655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 556041671 - 2² = 556041667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556041677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31370 + ... + 45783.

It is an arithmetic number, because the mean of its divisors is an integer number (139031508).

Almost surely, 2^556041671 is an apocalyptic number.

556041671 is a deficient number, since it is larger than the sum of its proper divisors (84361).

556041671 is an equidigital number, since it uses as much as digits as its factorization.

556041671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84360.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 556041671 is about 23580.5358505696. The cubic root of 556041671 is about 822.3103942988.

It can be divided in two parts, 55604 and 1671, that added together give a palindrome (57275).

The spelling of 556041671 in words is "five hundred fifty-six million, forty-one thousand, six hundred seventy-one".