556842005 has 4 divisors (see below), whose sum is σ = 668210412. Its totient is φ = 445473600.

The previous prime is 556841969. The next prime is 556842019. The reversal of 556842005 is 500248655.

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

It can be written as a sum of positive squares in 2 ways, for example, as 318015889 + 238826116 = 17833^2 + 15454^2 .

It is not a de Polignac number, because 556842005 - 2¹⁰ = 556840981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55684196 + ... + 55684205.

It is an arithmetic number, because the mean of its divisors is an integer number (167052603).

Almost surely, 2^556842005 is an apocalyptic number.

It is an amenable number.

556842005 is a deficient number, since it is larger than the sum of its proper divisors (111368407).

556842005 is a wasteful number, since it uses less digits than its factorization.

556842005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111368406.

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 556842005 is about 23597.4999735141. The cubic root of 556842005 is about 822.7047337276.

The spelling of 556842005 in words is "five hundred fifty-six million, eight hundred forty-two thousand, five".