56251 has 4 divisors (see below), whose sum is σ = 60592. Its totient is φ = 51912.

The previous prime is 56249. The next prime is 56263. The reversal of 56251 is 15265.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56251 - 2¹ = 56249 is a prime.

It is a Duffinian number.

56251 is a lucky number.

It is a plaindrome in base 14.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (56951) 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, 2151 + ... + 2176.

It is an arithmetic number, because the mean of its divisors is an integer number (15148).

2⁵⁶²⁵¹ is an apocalyptic number.

56251 is a deficient number, since it is larger than the sum of its proper divisors (4341).

56251 is a wasteful number, since it uses less digits than its factorization.

56251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340.

The product of its digits is 300, while the sum is 19.

The square root of 56251 is about 237.1729326884. The cubic root of 56251 is about 38.3156986730.

The spelling of 56251 in words is "fifty-six thousand, two hundred fifty-one".