556340241 has 4 divisors (see below), whose sum is σ = 741786992. Its totient is φ = 370893492.

The previous prime is 556340231. The next prime is 556340287. The reversal of 556340241 is 142043655.

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.

It is not a de Polignac number, because 556340241 - 2¹⁸ = 556078097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 556340199 and 556340208.

It is not an unprimeable number, because it can be changed into a prime (556340201) 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, 92723371 + ... + 92723376.

It is an arithmetic number, because the mean of its divisors is an integer number (185446748).

Almost surely, 2^556340241 is an apocalyptic number.

It is an amenable number.

556340241 is a deficient number, since it is larger than the sum of its proper divisors (185446751).

556340241 is a wasteful number, since it uses less digits than its factorization.

556340241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185446750.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 556340241 is about 23586.8658579303. The cubic root of 556340241 is about 822.4575495070.

Adding to 556340241 its reverse (142043655), we get a palindrome (698383896).

The spelling of 556340241 in words is "five hundred fifty-six million, three hundred forty thousand, two hundred forty-one".