503153023420 has 48 divisors (see below), whose sum is σ = 1075679589600. Its totient is φ = 197641739520.

The previous prime is 503153023409. The next prime is 503153023459. The reversal of 503153023420 is 24320351305.

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, 422046 + ... + 1088314.

It is an arithmetic number, because the mean of its divisors is an integer number (22409991450).

Almost surely, 2^503153023420 is an apocalyptic number.

It is an amenable number.

503153023420 is an abundant number, since it is smaller than the sum of its proper divisors (572526566180).

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

503153023420 is a wasteful number, since it uses less digits than its factorization.

503153023420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666958 (or 666956 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 503153023420 its reverse (24320351305), we get a palindrome (527473374725).

The spelling of 503153023420 in words is "five hundred three billion, one hundred fifty-three million, twenty-three thousand, four hundred twenty".