56503163011 has 8 divisors (see below), whose sum is σ = 57464890560. Its totient is φ = 55541570472.

The previous prime is 56503163009. The next prime is 56503163023. The reversal of 56503163011 is 11036130565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56503163011 - 2¹ = 56503163009 is a prime.

It is a super-2 number, since 2×56503163011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56503163071) 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 7 ways as a sum of consecutive naturals, for example, 1175496 + ... + 1222618.

It is an arithmetic number, because the mean of its divisors is an integer number (7183111320).

Almost surely, 2^56503163011 is an apocalyptic number.

56503163011 is a deficient number, since it is larger than the sum of its proper divisors (961727549).

56503163011 is a wasteful number, since it uses less digits than its factorization.

56503163011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67505.

The product of its (nonzero) digits is 8100, while the sum is 31.

Adding to 56503163011 its reverse (11036130565), we get a palindrome (67539293576).

The spelling of 56503163011 in words is "fifty-six billion, five hundred three million, one hundred sixty-three thousand, eleven".