503055056 has 80 divisors (see below), whose sum is σ = 1139212800. Its totient is φ = 210760704.

The previous prime is 503055031. The next prime is 503055061. The reversal of 503055056 is 650550305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1086281 + ... + 1086743.

It is an arithmetic number, because the mean of its divisors is an integer number (14240160).

Almost surely, 2^503055056 is an apocalyptic number.

503055056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503055056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569606400).

503055056 is an abundant number, since it is smaller than the sum of its proper divisors (636157744).

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

503055056 is a wasteful number, since it uses less digits than its factorization.

503055056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 503055056 is about 22428.8888712749. Note that the first 4 decimals coincide. The cubic root of 503055056 is about 795.3137777516.

The spelling of 503055056 in words is "five hundred three million, fifty-five thousand, fifty-six".