503250545431 has 4 divisors (see below), whose sum is σ = 525131003952. Its totient is φ = 481370086912.

The previous prime is 503250545381. The next prime is 503250545443. The reversal of 503250545431 is 134545052305.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 503250545431 - 2¹⁹ = 503250021143 is a prime.

It is a super-2 number, since 2×503250545431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503250545461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10940229226 + ... + 10940229271.

It is an arithmetic number, because the mean of its divisors is an integer number (131282750988).

Almost surely, 2^503250545431 is an apocalyptic number.

503250545431 is a deficient number, since it is larger than the sum of its proper divisors (21880458521).

503250545431 is a wasteful number, since it uses less digits than its factorization.

503250545431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21880458520.

The product of its (nonzero) digits is 180000, while the sum is 37.

Adding to 503250545431 its reverse (134545052305), we get a palindrome (637795597736).

The spelling of 503250545431 in words is "five hundred three billion, two hundred fifty million, five hundred forty-five thousand, four hundred thirty-one".