556341261 has 32 divisors (see below), whose sum is σ = 893967360. Its totient is φ = 300640896.

The previous prime is 556341251. The next prime is 556341271. The reversal of 556341261 is 162143655.

It is an interprime number because it is at equal distance from previous prime (556341251) and next prime (556341271).

It is not a de Polignac number, because 556341261 - 2⁶ = 556341197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556341211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 341130 + ... + 342756.

It is an arithmetic number, because the mean of its divisors is an integer number (27936480).

Almost surely, 2^556341261 is an apocalyptic number.

It is an amenable number.

556341261 is a deficient number, since it is larger than the sum of its proper divisors (337626099).

556341261 is a wasteful number, since it uses less digits than its factorization.

556341261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513.

The product of its digits is 21600, while the sum is 33.

The square root of 556341261 is about 23586.8874801234. The cubic root of 556341261 is about 822.4580521408.

The spelling of 556341261 in words is "five hundred fifty-six million, three hundred forty-one thousand, two hundred sixty-one".