56125443503 has 4 divisors (see below), whose sum is σ = 56128290408. Its totient is φ = 56122596600.

The previous prime is 56125443499. The next prime is 56125443527. The reversal of 56125443503 is 30534452165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56125443503 - 2² = 56125443499 is a prime.

It is a super-2 number, since 2×56125443503² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56125443553) 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 3 ways as a sum of consecutive naturals, for example, 1393673 + ... + 1433378.

It is an arithmetic number, because the mean of its divisors is an integer number (14032072602).

Almost surely, 2^56125443503 is an apocalyptic number.

56125443503 is a deficient number, since it is larger than the sum of its proper divisors (2846905).

56125443503 is a wasteful number, since it uses less digits than its factorization.

56125443503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846904.

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 56125443503 its reverse (30534452165), we get a palindrome (86659895668).

The spelling of 56125443503 in words is "fifty-six billion, one hundred twenty-five million, four hundred forty-three thousand, five hundred three".