56780217796 has 27 divisors (see below), whose sum is σ = 99955158093. Its totient is φ = 28222593840.

The previous prime is 56780217713. The next prime is 56780217811. The reversal of 56780217796 is 69771208765.

The square root of 56780217796 is 238286.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 269419396 + 56510798400 = 16414^2 + 237720^2 .

It is a super-2 number, since 2×56780217796² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56780217796.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 134869666 + ... + 134870086.

Almost surely, 2^56780217796 is an apocalyptic number.

56780217796 is the 238286-th square number.

It is an amenable number.

56780217796 is a deficient number, since it is larger than the sum of its proper divisors (43174940297).

56780217796 is an frugal number, since it uses more digits than its factorization.

56780217796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 58.

It can be divided in two parts, 56780 and 217796, that added together give a square (274576 = 524²).

The spelling of 56780217796 in words is "fifty-six billion, seven hundred eighty million, two hundred seventeen thousand, seven hundred ninety-six".