501030531040 has 96 divisors (see below), whose sum is σ = 1276868577600. Its totient is φ = 184686587904.

The previous prime is 501030530999. The next prime is 501030531049. The reversal of 501030531040 is 40135030105.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501030531049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1044852 + ... + 1446988.

It is an arithmetic number, because the mean of its divisors is an integer number (13300714350).

Almost surely, 2^501030531040 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 501030531040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638434288800).

501030531040 is an abundant number, since it is smaller than the sum of its proper divisors (775838046560).

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

501030531040 is a wasteful number, since it uses less digits than its factorization.

501030531040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402764 (or 402756 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 501030531040 its reverse (40135030105), we get a palindrome (541165561145).

The spelling of 501030531040 in words is "five hundred one billion, thirty million, five hundred thirty-one thousand, forty".