56131236603 has 16 divisors (see below), whose sum is σ = 89554110240. Its totient is φ = 34542299232.

The previous prime is 56131236593. The next prime is 56131236619. The reversal of 56131236603 is 30663213165.

56131236603 is a `hidden beast` number, since 5 + 6 + 1 + 3 + 12 + 36 + 603 = 666.

It is not a de Polignac number, because 56131236603 - 2¹⁴ = 56131220219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56131236503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79958676 + ... + 79959377.

It is an arithmetic number, because the mean of its divisors is an integer number (5597131890).

Almost surely, 2^56131236603 is an apocalyptic number.

56131236603 is a deficient number, since it is larger than the sum of its proper divisors (33422873637).

56131236603 is a wasteful number, since it uses less digits than its factorization.

56131236603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159918075 (or 159918069 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

Adding to 56131236603 its reverse (30663213165), we get a palindrome (86794449768).

The spelling of 56131236603 in words is "fifty-six billion, one hundred thirty-one million, two hundred thirty-six thousand, six hundred three".