56100293281 has 4 divisors (see below), whose sum is σ = 56266763332. Its totient is φ = 55933823232.

The previous prime is 56100293261. The next prime is 56100293287. The reversal of 56100293281 is 18239200165.

56100293281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7583623056 + 48516670225 = 87084^2 + 220265^2 .

It is a cyclic number.

It is not a de Polignac number, because 56100293281 - 2⁹ = 56100292769 is a prime.

It is a super-2 number, since 2×56100293281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56100293281.

It is not an unprimeable number, because it can be changed into a prime (56100293287) 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, 83234520 + ... + 83235193.

It is an arithmetic number, because the mean of its divisors is an integer number (14066690833).

Almost surely, 2^56100293281 is an apocalyptic number.

It is an amenable number.

56100293281 is a deficient number, since it is larger than the sum of its proper divisors (166470051).

56100293281 is a wasteful number, since it uses less digits than its factorization.

56100293281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166470050.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 56100293281 in words is "fifty-six billion, one hundred million, two hundred ninety-three thousand, two hundred eighty-one".