556011601 has 8 divisors (see below), whose sum is σ = 558792000. Its totient is φ = 553238928.

The previous prime is 556011587. The next prime is 556011667. The reversal of 556011601 is 106110655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 556011601 - 2⁹ = 556011089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556014601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183900 + ... + 186898.

It is an arithmetic number, because the mean of its divisors is an integer number (69849000).

Almost surely, 2^556011601 is an apocalyptic number.

It is an amenable number.

556011601 is a deficient number, since it is larger than the sum of its proper divisors (2780399).

556011601 is a wasteful number, since it uses less digits than its factorization.

556011601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 556011601 is about 23579.8982398144. The cubic root of 556011601 is about 822.2955708779.

It can be divided in two parts, 5560 and 11601, that added together give a square (17161 = 131²).

The spelling of 556011601 in words is "five hundred fifty-six million, eleven thousand, six hundred one".