56891248103 has 2 divisors, whose sum is σ = 56891248104. Its totient is φ = 56891248102.

The previous prime is 56891248087. The next prime is 56891248129. The reversal of 56891248103 is 30184219865.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56891248103 - 2⁴ = 56891248087 is a prime.

It is a super-2 number, since 2×56891248103² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56891248163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28445624051 + 28445624052.

It is an arithmetic number, because the mean of its divisors is an integer number (28445624052).

Almost surely, 2^56891248103 is an apocalyptic number.

56891248103 is a deficient number, since it is larger than the sum of its proper divisors (1).

56891248103 is an equidigital number, since it uses as much as digits as its factorization.

56891248103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 56891248103 in words is "fifty-six billion, eight hundred ninety-one million, two hundred forty-eight thousand, one hundred three".