252445300 has 18 divisors (see below), whose sum is σ = 547806518. Its totient is φ = 100978080.

The previous prime is 252445283. The next prime is 252445357. The reversal of 252445300 is 3544252.

It can be written as a sum of positive squares in 3 ways, for example, as 38291344 + 214153956 = 6188^2 + 14634^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1262127 + ... + 1262326.

Almost surely, 2^252445300 is an apocalyptic number.

252445300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252445300 is an abundant number, since it is smaller than the sum of its proper divisors (295361218).

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

252445300 is a wasteful number, since it uses less digits than its factorization.

252445300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524467 (or 2524460 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 252445300 is about 15888.5273074631. The cubic root of 252445300 is about 632.0077877853.

Adding to 252445300 its reverse (3544252), we get a palindrome (255989552).

The spelling of 252445300 in words is "two hundred fifty-two million, four hundred forty-five thousand, three hundred".