503305210051 has 24 divisors (see below), whose sum is σ = 589323893760. Its totient is φ = 428573274192.

The previous prime is 503305210021. The next prime is 503305210069. The reversal of 503305210051 is 150012503305.

It is a de Polignac number, because none of the positive numbers 2^k-503305210051 is a prime.

It is a super-2 number, since 2×503305210051² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 503305209998 and 503305210025.

It is not an unprimeable number, because it can be changed into a prime (503305210021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14900740 + ... + 14934478.

It is an arithmetic number, because the mean of its divisors is an integer number (24555162240).

Almost surely, 2^503305210051 is an apocalyptic number.

503305210051 is a deficient number, since it is larger than the sum of its proper divisors (86018683709).

503305210051 is a wasteful number, since it uses less digits than its factorization.

503305210051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35743 (or 35736 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

Adding to 503305210051 its reverse (150012503305), we get a palindrome (653317713356).

The spelling of 503305210051 in words is "five hundred three billion, three hundred five million, two hundred ten thousand, fifty-one".