56011100281 has 4 divisors (see below), whose sum is σ = 56438666064. Its totient is φ = 55583534500.

The previous prime is 56011100227. The next prime is 56011100309. The reversal of 56011100281 is 18200111065.

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 56011100281 - 2¹¹ = 56011098233 is a prime.

It is a super-2 number, since 2×56011100281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56011100381) 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, 213782695 + ... + 213782956.

It is an arithmetic number, because the mean of its divisors is an integer number (14109666516).

Almost surely, 2^56011100281 is an apocalyptic number.

It is an amenable number.

56011100281 is a deficient number, since it is larger than the sum of its proper divisors (427565783).

56011100281 is a wasteful number, since it uses less digits than its factorization.

56011100281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427565782.

The product of its (nonzero) digits is 480, while the sum is 25.

The spelling of 56011100281 in words is "fifty-six billion, eleven million, one hundred thousand, two hundred eighty-one".