556336261 has 32 divisors (see below), whose sum is σ = 645765120. Its totient is φ = 475372800.

The previous prime is 556336243. The next prime is 556336289. The reversal of 556336261 is 162633655.

It is a cyclic number.

It is not a de Polignac number, because 556336261 - 2¹⁵ = 556303493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556336261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556336211) 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, 2115216 + ... + 2115478.

It is an arithmetic number, because the mean of its divisors is an integer number (20180160).

Almost surely, 2^556336261 is an apocalyptic number.

It is an amenable number.

556336261 is a deficient number, since it is larger than the sum of its proper divisors (89428859).

556336261 is a wasteful number, since it uses less digits than its factorization.

556336261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517.

The product of its digits is 97200, while the sum is 37.

The square root of 556336261 is about 23586.7814887916. The cubic root of 556336261 is about 822.4555882439.

The spelling of 556336261 in words is "five hundred fifty-six million, three hundred thirty-six thousand, two hundred sixty-one".