503533304540 has 24 divisors (see below), whose sum is σ = 1208479931232. Its totient is φ = 172639990080.

The previous prime is 503533304489. The next prime is 503533304581. The reversal of 503533304540 is 45403335305.

It is a super-2 number, since 2×503533304540² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 503533304540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1798333091 + ... + 1798333370.

It is an arithmetic number, because the mean of its divisors is an integer number (50353330468).

Almost surely, 2^503533304540 is an apocalyptic number.

It is an amenable number.

503533304540 is an abundant number, since it is smaller than the sum of its proper divisors (704946626692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503533304540 is a wasteful number, since it uses less digits than its factorization.

503533304540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3596666477 (or 3596666475 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 35.

Adding to 503533304540 its reverse (45403335305), we get a palindrome (548936639845).

The spelling of 503533304540 in words is "five hundred three billion, five hundred thirty-three million, three hundred four thousand, five hundred forty".