505025025340 has 72 divisors (see below), whose sum is σ = 1166204637360. Its totient is φ = 183570900480.

The previous prime is 505025025289. The next prime is 505025025353. The reversal of 505025025340 is 43520520505.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6103284 + ... + 6185476.

It is an arithmetic number, because the mean of its divisors is an integer number (16197286630).

Almost surely, 2^505025025340 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 505025025340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583102318680).

505025025340 is an abundant number, since it is smaller than the sum of its proper divisors (661179612020).

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

505025025340 is a wasteful number, since it uses less digits than its factorization.

505025025340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84763 (or 84750 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 31.

Adding to 505025025340 its reverse (43520520505), we get a palindrome (548545545845).

The spelling of 505025025340 in words is "five hundred five billion, twenty-five million, twenty-five thousand, three hundred forty".