56115211 has 4 divisors (see below), whose sum is σ = 56160432. Its totient is φ = 56069992.

The previous prime is 56115197. The next prime is 56115217. The reversal of 56115211 is 11251165.

It is a happy number.

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 56115211 - 2⁷ = 56115083 is a prime.

It is a super-3 number, since 3×56115211³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56115217) 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, 20695 + ... + 23248.

It is an arithmetic number, because the mean of its divisors is an integer number (14040108).

Almost surely, 2^56115211 is an apocalyptic number.

56115211 is a deficient number, since it is larger than the sum of its proper divisors (45221).

56115211 is a wasteful number, since it uses less digits than its factorization.

56115211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45220.

The product of its digits is 300, while the sum is 22.

The square root of 56115211 is about 7491.0086770741. The cubic root of 56115211 is about 382.8484267301.

Adding to 56115211 its reverse (11251165), we get a palindrome (67366376).

The spelling of 56115211 in words is "fifty-six million, one hundred fifteen thousand, two hundred eleven".