500155540 has 24 divisors (see below), whose sum is σ = 1051287552. Its totient is φ = 199879200.

The previous prime is 500155501. The next prime is 500155543. The reversal of 500155540 is 45551005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500155543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12157 + ... + 33883.

It is an arithmetic number, because the mean of its divisors is an integer number (43803648).

Almost surely, 2^500155540 is an apocalyptic number.

It is an amenable number.

500155540 is an abundant number, since it is smaller than the sum of its proper divisors (551132012).

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

500155540 is a wasteful number, since it uses less digits than its factorization.

500155540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22887 (or 22885 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 500155540 is about 22364.1574846896. The cubic root of 500155540 is about 793.7828189047.

It can be divided in two parts, 50015 and 5540, that added together give a palindrome (55555).

The spelling of 500155540 in words is "five hundred million, one hundred fifty-five thousand, five hundred forty".