56021033 has 8 divisors (see below), whose sum is σ = 57072000. Its totient is φ = 54978768.

The previous prime is 56021023. The next prime is 56021041. The reversal of 56021033 is 33012065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56021033 - 2⁶ = 56020969 is a prime.

It is a super-2 number, since 2×56021033² = 6276712276774178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56020996 and 56021014.

It is not an unprimeable number, because it can be changed into a prime (56021023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11618 + ... + 15716.

It is an arithmetic number, because the mean of its divisors is an integer number (7134000).

Almost surely, 2^56021033 is an apocalyptic number.

It is an amenable number.

56021033 is a deficient number, since it is larger than the sum of its proper divisors (1050967).

56021033 is a wasteful number, since it uses less digits than its factorization.

56021033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 56021033 is about 7484.7199680416. The cubic root of 56021033 is about 382.6341289895.

Adding to 56021033 its reverse (33012065), we get a palindrome (89033098).

The spelling of 56021033 in words is "fifty-six million, twenty-one thousand, thirty-three".