253030500 has 96 divisors (see below), whose sum is σ = 818737920. Its totient is φ = 67471200.

The previous prime is 253030489. The next prime is 253030513. The reversal of 253030500 is 5030352.

253030500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4129 + ... + 22871.

It is an arithmetic number, because the mean of its divisors is an integer number (8528520).

Almost surely, 2^253030500 is an apocalyptic number.

253030500 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 253030500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409368960).

253030500 is an abundant number, since it is smaller than the sum of its proper divisors (565707420).

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

253030500 is a wasteful number, since it uses less digits than its factorization.

253030500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18771 (or 18753 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 253030500 is about 15906.9324509787. The cubic root of 253030500 is about 632.4957687959.

Adding to 253030500 its reverse (5030352), we get a palindrome (258060852).

The spelling of 253030500 in words is "two hundred fifty-three million, thirty thousand, five hundred".