503148660 has 144 divisors (see below), whose sum is σ = 1735401024. Its totient is φ = 108229632.

The previous prime is 503148649. The next prime is 503148661. The reversal of 503148660 is 66841305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503148661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44947 + ... + 55013.

It is an arithmetic number, because the mean of its divisors is an integer number (12051396).

Almost surely, 2^503148660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503148660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (867700512).

503148660 is an abundant number, since it is smaller than the sum of its proper divisors (1232252364).

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

503148660 is a wasteful number, since it uses less digits than its factorization.

503148660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110 (or 10101 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 503148660 is about 22430.9754580580. The cubic root of 503148660 is about 795.3631029916.

Adding to 503148660 its reverse (66841305), we get a palindrome (569989965).

The spelling of 503148660 in words is "five hundred three million, one hundred forty-eight thousand, six hundred sixty".