503756420 has 12 divisors (see below), whose sum is σ = 1057888524. Its totient is φ = 201502560.

The previous prime is 503756389. The next prime is 503756423. The reversal of 503756420 is 24657305.

It can be written as a sum of positive squares in 2 ways, for example, as 90935296 + 412821124 = 9536^2 + 20318^2 .

It is not an unprimeable number, because it can be changed into a prime (503756423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12593891 + ... + 12593930.

It is an arithmetic number, because the mean of its divisors is an integer number (88157377).

Almost surely, 2^503756420 is an apocalyptic number.

It is an amenable number.

503756420 is an abundant number, since it is smaller than the sum of its proper divisors (554132104).

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

503756420 is a wasteful number, since it uses less digits than its factorization.

503756420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25187830 (or 25187828 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 503756420 is about 22444.5187072479. The cubic root of 503756420 is about 795.6832173814.

The spelling of 503756420 in words is "five hundred three million, seven hundred fifty-six thousand, four hundred twenty".