503042552531 has 8 divisors (see below), whose sum is σ = 521654206944. Its totient is φ = 484694893440.

The previous prime is 503042552459. The next prime is 503042552641. The reversal of 503042552531 is 135255240305.

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 503042552531 - 2¹⁰ = 503042551507 is a prime.

It is a super-2 number, since 2×503042552531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 503042552491 and 503042552500.

It is not an unprimeable number, because it can be changed into a prime (503042552231) 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, 65994950 + ... + 66002571.

It is an arithmetic number, because the mean of its divisors is an integer number (65206775868).

Almost surely, 2^503042552531 is an apocalyptic number.

503042552531 is a deficient number, since it is larger than the sum of its proper divisors (18611654413).

503042552531 is a wasteful number, since it uses less digits than its factorization.

503042552531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131997661.

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 503042552531 its reverse (135255240305), we get a palindrome (638297792836).

The spelling of 503042552531 in words is "five hundred three billion, forty-two million, five hundred fifty-two thousand, five hundred thirty-one".