56517930226 has 8 divisors (see below), whose sum is σ = 86376459564. Its totient is φ = 27725777040.

The previous prime is 56517930211. The next prime is 56517930229. The reversal of 56517930226 is 62203971565.

It is a Cunningham number, because it is equal to 237735²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 56517930225 + 1 = 237735^2 + 1^2 .

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

It is a super-2 number, since 2×56517930226² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56517930229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266593905 + ... + 266594116.

Almost surely, 2^56517930226 is an apocalyptic number.

56517930226 is a deficient number, since it is larger than the sum of its proper divisors (29858529338).

56517930226 is a wasteful number, since it uses less digits than its factorization.

56517930226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533188076.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 56517930226 in words is "fifty-six billion, five hundred seventeen million, nine hundred thirty thousand, two hundred twenty-six".