503431533240 has 64 divisors (see below), whose sum is σ = 1511856783360. Its totient is φ = 134109548160.

The previous prime is 503431533223. The next prime is 503431533287. The reversal of 503431533240 is 42335134305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053176 + ... + 2285255.

It is an arithmetic number, because the mean of its divisors is an integer number (23622762240).

Almost surely, 2^503431533240 is an apocalyptic number.

It is an amenable number.

503431533240 is an abundant number, since it is smaller than the sum of its proper divisors (1008425250120).

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

503431533240 is a wasteful number, since it uses less digits than its factorization.

503431533240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4339412 (or 4339408 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 503431533240 its reverse (42335134305), we get a palindrome (545766667545).

The spelling of 503431533240 in words is "five hundred three billion, four hundred thirty-one million, five hundred thirty-three thousand, two hundred forty".