20532250 has 16 divisors (see below), whose sum is σ = 38436840. Its totient is φ = 8212800.

The previous prime is 20532233. The next prime is 20532263. The reversal of 20532250 is 5223502.

It can be written as a sum of positive squares in 4 ways, for example, as 1635841 + 18896409 = 1279^2 + 4347^2 .

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 7 ways as a sum of consecutive naturals, for example, 40815 + ... + 41314.

Almost surely, 2^20532250 is an apocalyptic number.

20532250 is a deficient number, since it is larger than the sum of its proper divisors (17904590).

20532250 is an equidigital number, since it uses as much as digits as its factorization.

20532250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82146 (or 82136 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20532250 is about 4531.2525862062. The cubic root of 20532250 is about 273.8286263865.

Adding to 20532250 its reverse (5223502), we get a palindrome (25755752).

The spelling of 20532250 in words is "twenty million, five hundred thirty-two thousand, two hundred fifty".