501816252 has 36 divisors (see below), whose sum is σ = 1362074280. Its totient is φ = 143375904.

The previous prime is 501816241. The next prime is 501816269. The reversal of 501816252 is 252618105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 426127 + ... + 427302.

Almost surely, 2^501816252 is an apocalyptic number.

It is an amenable number.

501816252 is an abundant number, since it is smaller than the sum of its proper divisors (860258028).

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

501816252 is a wasteful number, since it uses less digits than its factorization.

501816252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853450 (or 853441 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 501816252 is about 22401.2555898101. The cubic root of 501816252 is about 794.6604047779.

The spelling of 501816252 in words is "five hundred one million, eight hundred sixteen thousand, two hundred fifty-two".