56389737903 has 16 divisors (see below), whose sum is σ = 75290259456. Its totient is φ = 37541225600.

The previous prime is 56389737889. The next prime is 56389737941. The reversal of 56389737903 is 30973798365.

It is a cyclic number.

It is not a de Polignac number, because 56389737903 - 2⁶ = 56389737839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56389637903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10642951 + ... + 10648247.

It is an arithmetic number, because the mean of its divisors is an integer number (4705641216).

Almost surely, 2^56389737903 is an apocalyptic number.

56389737903 is a deficient number, since it is larger than the sum of its proper divisors (18900521553).

56389737903 is a wasteful number, since it uses less digits than its factorization.

56389737903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9534.

The product of its (nonzero) digits is 25719120, while the sum is 60.

The spelling of 56389737903 in words is "fifty-six billion, three hundred eighty-nine million, seven hundred thirty-seven thousand, nine hundred three".