56271819490903 has 2 divisors, whose sum is σ = 56271819490904. Its totient is φ = 56271819490902.

The previous prime is 56271819490801. The next prime is 56271819490921. The reversal of 56271819490903 is 30909491817265.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56271819490903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56271819490973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28135909745451 + 28135909745452.

It is an arithmetic number, because the mean of its divisors is an integer number (28135909745452).

It is a 1-persistent number, because it is pandigital, but 2⋅56271819490903 = 112543638981806 is not.

Almost surely, 2^{56271819490903} is an apocalyptic number.

56271819490903 is a deficient number, since it is larger than the sum of its proper divisors (1).

56271819490903 is an equidigital number, since it uses as much as digits as its factorization.

56271819490903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29393280, while the sum is 64.

The spelling of 56271819490903 in words is "fifty-six trillion, two hundred seventy-one billion, eight hundred nineteen million, four hundred ninety thousand, nine hundred three".