56022011 has 4 divisors (see below), whose sum is σ = 56269032. Its totient is φ = 55774992.

The previous prime is 56021963. The next prime is 56022017. The reversal of 56022011 is 11022065.

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

It is a cyclic number.

It is not a de Polignac number, because 56022011 - 2¹⁴ = 56005627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56022017) 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, 123170 + ... + 123623.

It is an arithmetic number, because the mean of its divisors is an integer number (14067258).

Almost surely, 2^56022011 is an apocalyptic number.

56022011 is a deficient number, since it is larger than the sum of its proper divisors (247021).

56022011 is a wasteful number, since it uses less digits than its factorization.

56022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247020.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 56022011 is about 7484.7853008620. The cubic root of 56022011 is about 382.6363556174.

Adding to 56022011 its reverse (11022065), we get a palindrome (67044076).

The spelling of 56022011 in words is "fifty-six million, twenty-two thousand, eleven".