56426530387 has 2 divisors, whose sum is σ = 56426530388. Its totient is φ = 56426530386.

The previous prime is 56426530333. The next prime is 56426530411. The reversal of 56426530387 is 78303562465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56426530387 - 2¹⁵ = 56426497619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56426530387.

It is not a weakly prime, because it can be changed into another prime (56426530687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28213265193 + 28213265194.

It is an arithmetic number, because the mean of its divisors is an integer number (28213265194).

Almost surely, 2^56426530387 is an apocalyptic number.

56426530387 is a deficient number, since it is larger than the sum of its proper divisors (1).

56426530387 is an equidigital number, since it uses as much as digits as its factorization.

56426530387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 49.

The spelling of 56426530387 in words is "fifty-six billion, four hundred twenty-six million, five hundred thirty thousand, three hundred eighty-seven".