56263621069 has 2 divisors, whose sum is σ = 56263621070. Its totient is φ = 56263621068.

The previous prime is 56263621067. The next prime is 56263621093. The reversal of 56263621069 is 96012636265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48874155625 + 7389465444 = 221075^2 + 85962^2 .

It is a cyclic number.

It is not a de Polignac number, because 56263621069 - 2¹ = 56263621067 is a prime.

It is a super-2 number, since 2×56263621069² (a number of 22 digits) contains 22 as substring.

Together with 56263621067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56263621061) 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 as a sum of consecutive naturals, namely, 28131810534 + 28131810535.

It is an arithmetic number, because the mean of its divisors is an integer number (28131810535).

Almost surely, 2^56263621069 is an apocalyptic number.

It is an amenable number.

56263621069 is a deficient number, since it is larger than the sum of its proper divisors (1).

56263621069 is an equidigital number, since it uses as much as digits as its factorization.

56263621069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 56263621069 in words is "fifty-six billion, two hundred sixty-three million, six hundred twenty-one thousand, sixty-nine".