501542250 has 64 divisors (see below), whose sum is σ = 1365676416. Its totient is φ = 121584000.

The previous prime is 501542231. The next prime is 501542281. The reversal of 501542250 is 52245105.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 501542250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22147 + ... + 38646.

It is an arithmetic number, because the mean of its divisors is an integer number (21338694).

Almost surely, 2^501542250 is an apocalyptic number.

501542250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

501542250 is an abundant number, since it is smaller than the sum of its proper divisors (864134166).

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

501542250 is a wasteful number, since it uses less digits than its factorization.

501542250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60824 (or 60814 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 501542250 is about 22395.1389814844. The cubic root of 501542250 is about 794.5157448011.

Adding to 501542250 its reverse (52245105), we get a palindrome (553787355).

The spelling of 501542250 in words is "five hundred one million, five hundred forty-two thousand, two hundred fifty".