56033081 has 4 divisors (see below), whose sum is σ = 60343332. Its totient is φ = 51722832.

The previous prime is 56033077. The next prime is 56033093. The reversal of 56033081 is 18033065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18033065 = 5 ⋅3606613.

It can be written as a sum of positive squares in 2 ways, for example, as 31866025 + 24167056 = 5645^2 + 4916^2 .

It is a cyclic number.

It is not a de Polignac number, because 56033081 - 2² = 56033077 is a prime.

It is a super-2 number, since 2×56033081² = 6279412332705122, which 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 56033081.

It is not an unprimeable number, because it can be changed into a prime (56030081) 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, 2155106 + ... + 2155131.

It is an arithmetic number, because the mean of its divisors is an integer number (15085833).

Almost surely, 2^56033081 is an apocalyptic number.

It is an amenable number.

56033081 is a deficient number, since it is larger than the sum of its proper divisors (4310251).

56033081 is a wasteful number, since it uses less digits than its factorization.

56033081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310250.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 56033081 is about 7485.5247645038. The cubic root of 56033081 is about 382.6615570541.

The spelling of 56033081 in words is "fifty-six million, thirty-three thousand, eighty-one".