56327281 has 4 divisors (see below), whose sum is σ = 56563200. Its totient is φ = 56091364.

The previous prime is 56327269. The next prime is 56327329. The reversal of 56327281 is 18272365.

It is a happy number.

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 56327281 - 2¹³ = 56319089 is a prime.

It is a super-2 number, since 2×56327281² = 6345525169705922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56327231) 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, 117601 + ... + 118078.

It is an arithmetic number, because the mean of its divisors is an integer number (14140800).

Almost surely, 2^56327281 is an apocalyptic number.

It is an amenable number.

56327281 is a deficient number, since it is larger than the sum of its proper divisors (235919).

56327281 is a wasteful number, since it uses less digits than its factorization.

56327281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235918.

The product of its digits is 20160, while the sum is 34.

The square root of 56327281 is about 7505.1502982952. The cubic root of 56327281 is about 383.3301060010.

The spelling of 56327281 in words is "fifty-six million, three hundred twenty-seven thousand, two hundred eighty-one".