252811000 has 64 divisors (see below), whose sum is σ = 637116480. Its totient is φ = 93340800.

The previous prime is 252810991. The next prime is 252811099. The reversal of 252811000 is 118252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3277 + ... + 22723.

It is an arithmetic number, because the mean of its divisors is an integer number (9954945).

Almost surely, 2^252811000 is an apocalyptic number.

252811000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252811000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318558240).

252811000 is an abundant number, since it is smaller than the sum of its proper divisors (384305480).

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

252811000 is a wasteful number, since it uses less digits than its factorization.

252811000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19481 (or 19467 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 252811000 is about 15900.0314465098. The cubic root of 252811000 is about 632.3128224900.

Adding to 252811000 its reverse (118252), we get a palindrome (252929252).

The spelling of 252811000 in words is "two hundred fifty-two million, eight hundred eleven thousand".