505250140 has 24 divisors (see below), whose sum is σ = 1062158832. Its totient is φ = 201884160.

The previous prime is 505250117. The next prime is 505250159. The reversal of 505250140 is 41052505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6412 + ... + 32428.

It is an arithmetic number, because the mean of its divisors is an integer number (44256618).

Almost surely, 2^505250140 is an apocalyptic number.

It is an amenable number.

505250140 is an abundant number, since it is smaller than the sum of its proper divisors (556908692).

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

505250140 is a wasteful number, since it uses less digits than its factorization.

505250140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26997 (or 26995 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 505250140 is about 22477.7699071772. The cubic root of 505250140 is about 796.4688848808.

The spelling of 505250140 in words is "five hundred five million, two hundred fifty thousand, one hundred forty".