56503154331 has 48 divisors (see below), whose sum is σ = 89870376960. Its totient is φ = 33990989760.

The previous prime is 56503154317. The next prime is 56503154339. The reversal of 56503154331 is 13345130565.

56503154331 is a `hidden beast` number, since 5 + 6 + 5 + 0 + 315 + 4 + 331 = 666.

It is not a de Polignac number, because 56503154331 - 2¹⁰ = 56503153307 is a prime.

It is a super-2 number, since 2×56503154331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56503154339) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5003950 + ... + 5015228.

It is an arithmetic number, because the mean of its divisors is an integer number (1872299520).

Almost surely, 2^56503154331 is an apocalyptic number.

56503154331 is a deficient number, since it is larger than the sum of its proper divisors (33367222629).

56503154331 is a wasteful number, since it uses less digits than its factorization.

56503154331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12256 (or 12253 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

Adding to 56503154331 its reverse (13345130565), we get a palindrome (69848284896).

The spelling of 56503154331 in words is "fifty-six billion, five hundred three million, one hundred fifty-four thousand, three hundred thirty-one".