56261 has 4 divisors (see below), whose sum is σ = 56832. Its totient is φ = 55692.

The previous prime is 56249. The next prime is 56263. The reversal of 56261 is 16265.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16265 = 5 ⋅3253.

It is a cyclic number.

It is not a de Polignac number, because 56261 - 2⁶ = 56197 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56263) 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, 95 + ... + 348.

It is an arithmetic number, because the mean of its divisors is an integer number (14208).

2⁵⁶²⁶¹ is an apocalyptic number.

It is an amenable number.

56261 is a deficient number, since it is larger than the sum of its proper divisors (571).

56261 is a wasteful number, since it uses less digits than its factorization.

56261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570.

The product of its digits is 360, while the sum is 20.

The square root of 56261 is about 237.1940134152. The cubic root of 56261 is about 38.3179690580.

The spelling of 56261 in words is "fifty-six thousand, two hundred sixty-one".