503537836816 has 45 divisors (see below), whose sum is σ = 1134931718631. Its totient is φ = 215793414816.

The previous prime is 503537836787. The next prime is 503537836817. The reversal of 503537836816 is 618638735305.

The square root of 503537836816 is 709604.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503537836817) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19856241 + ... + 19881583.

Almost surely, 2^503537836816 is an apocalyptic number.

503537836816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

503537836816 is the 709604-th square number.

It is an amenable number.

503537836816 is an abundant number, since it is smaller than the sum of its proper divisors (631393881815).

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

503537836816 is an frugal number, since it uses more digits than its factorization.

503537836816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50708 (or 25352 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 503537836816 in words is "five hundred three billion, five hundred thirty-seven million, eight hundred thirty-six thousand, eight hundred sixteen".