56600261 has 4 divisors (see below), whose sum is σ = 57316800. Its totient is φ = 55883724.

The previous prime is 56600233. The next prime is 56600279. The reversal of 56600261 is 16200665.

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 a cyclic number.

It is not a de Polignac number, because 56600261 - 2¹⁰ = 56599237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56600261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56600281) 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, 358151 + ... + 358308.

It is an arithmetic number, because the mean of its divisors is an integer number (14329200).

Almost surely, 2^56600261 is an apocalyptic number.

It is an amenable number.

56600261 is a deficient number, since it is larger than the sum of its proper divisors (716539).

56600261 is an equidigital number, since it uses as much as digits as its factorization.

56600261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716538.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 56600261 is about 7523.3144956196. The cubic root of 56600261 is about 383.9483550517.

The spelling of 56600261 in words is "fifty-six million, six hundred thousand, two hundred sixty-one".