56388288371 has 2 divisors, whose sum is σ = 56388288372. Its totient is φ = 56388288370.

The previous prime is 56388288361. The next prime is 56388288377. The reversal of 56388288371 is 17388288365.

56388288371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56388288371 is a prime.

It is a super-2 number, since 2×56388288371² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56388288371.

It is not a weakly prime, because it can be changed into another prime (56388288377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28194144185 + 28194144186.

It is an arithmetic number, because the mean of its divisors is an integer number (28194144186).

Almost surely, 2^56388288371 is an apocalyptic number.

56388288371 is a deficient number, since it is larger than the sum of its proper divisors (1).

56388288371 is an equidigital number, since it uses as much as digits as its factorization.

56388288371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15482880, while the sum is 59.

The spelling of 56388288371 in words is "fifty-six billion, three hundred eighty-eight million, two hundred eighty-eight thousand, three hundred seventy-one".