503135020 has 24 divisors (see below), whose sum is σ = 1063587168. Its totient is φ = 199920000.

The previous prime is 503134999. The next prime is 503135033. The reversal of 503135020 is 20531305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80281 + ... + 86320.

It is an arithmetic number, because the mean of its divisors is an integer number (44316132).

Almost surely, 2^503135020 is an apocalyptic number.

It is an amenable number.

503135020 is an abundant number, since it is smaller than the sum of its proper divisors (560452148).

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

503135020 is a wasteful number, since it uses less digits than its factorization.

503135020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166761 (or 166759 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 503135020 is about 22430.6714121535. The cubic root of 503135020 is about 795.3559156851.

Adding to 503135020 its reverse (20531305), we get a palindrome (523666325).

The spelling of 503135020 in words is "five hundred three million, one hundred thirty-five thousand, twenty".