503536993 has 8 divisors (see below), whose sum is σ = 530273120. Its totient is φ = 476824320.

The previous prime is 503536987. The next prime is 503536997. The reversal of 503536993 is 399635305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 503536993 - 2⁵ = 503536961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503536997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53953 + ... + 62593.

It is an arithmetic number, because the mean of its divisors is an integer number (66284140).

Almost surely, 2^503536993 is an apocalyptic number.

It is an amenable number.

503536993 is a deficient number, since it is larger than the sum of its proper divisors (26736127).

503536993 is a wasteful number, since it uses less digits than its factorization.

503536993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11727.

The product of its (nonzero) digits is 328050, while the sum is 43.

The square root of 503536993 is about 22439.6299657548. The cubic root of 503536993 is about 795.5676722948.

The spelling of 503536993 in words is "five hundred three million, five hundred thirty-six thousand, nine hundred ninety-three".