56031966101 has 2 divisors, whose sum is σ = 56031966102. Its totient is φ = 56031966100.

The previous prime is 56031966043. The next prime is 56031966103. The reversal of 56031966101 is 10166913065.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53476562500 + 2555403601 = 231250^2 + 50551^2 .

It is a cyclic number.

It is not a de Polignac number, because 56031966101 - 2¹⁸ = 56031703957 is a prime.

It is a super-2 number, since 2×56031966101² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 56031966103, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56031966103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28015983050 + 28015983051.

It is an arithmetic number, because the mean of its divisors is an integer number (28015983051).

Almost surely, 2^56031966101 is an apocalyptic number.

It is an amenable number.

56031966101 is a deficient number, since it is larger than the sum of its proper divisors (1).

56031966101 is an equidigital number, since it uses as much as digits as its factorization.

56031966101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 56031966101 in words is "fifty-six billion, thirty-one million, nine hundred sixty-six thousand, one hundred one".