56206518011 has 16 divisors (see below), whose sum is σ = 64430446080. Its totient is φ = 48031418880.

The previous prime is 56206518001. The next prime is 56206518037. The reversal of 56206518011 is 11081560265.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56206518011 - 2²² = 56202323707 is a prime.

It is a super-2 number, since 2×56206518011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56206518001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3267050 + ... + 3284208.

It is an arithmetic number, because the mean of its divisors is an integer number (4026902880).

Almost surely, 2^56206518011 is an apocalyptic number.

56206518011 is a deficient number, since it is larger than the sum of its proper divisors (8223928069).

56206518011 is a wasteful number, since it uses less digits than its factorization.

56206518011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18554.

The product of its (nonzero) digits is 14400, while the sum is 35.

The spelling of 56206518011 in words is "fifty-six billion, two hundred six million, five hundred eighteen thousand, eleven".