503052315021 has 16 divisors (see below), whose sum is σ = 762594381120. Its totient is φ = 327568948560.

The previous prime is 503052314987. The next prime is 503052315041. The reversal of 503052315021 is 120513250305.

It is a happy number.

503052315021 is a `hidden beast` number, since 50 + 30 + 52 + 31 + 502 + 1 = 666.

It is not a de Polignac number, because 503052315021 - 2¹³ = 503052306829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503052315041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216644970 + ... + 216647291.

It is an arithmetic number, because the mean of its divisors is an integer number (47662148820).

Almost surely, 2^503052315021 is an apocalyptic number.

It is an amenable number.

503052315021 is a deficient number, since it is larger than the sum of its proper divisors (259542066099).

503052315021 is a wasteful number, since it uses less digits than its factorization.

503052315021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433292313 (or 433292307 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 503052315021 its reverse (120513250305), we get a palindrome (623565565326).

The spelling of 503052315021 in words is "five hundred three billion, fifty-two million, three hundred fifteen thousand, twenty-one".