20253130 has 16 divisors (see below), whose sum is σ = 36576360. Its totient is φ = 8074432.

The previous prime is 20253127. The next prime is 20253161. The reversal of 20253130 is 3135202.

It can be written as a sum of positive squares in 4 ways, for example, as 4116841 + 16136289 = 2029^2 + 4017^2 .

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, 25 + ... + 6364.

Almost surely, 2^20253130 is an apocalyptic number.

20253130 is a deficient number, since it is larger than the sum of its proper divisors (16323230).

20253130 is a wasteful number, since it uses less digits than its factorization.

20253130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6713.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 20253130 is about 4500.3477643400. The cubic root of 20253130 is about 272.5821316271.

Adding to 20253130 its reverse (3135202), we get a palindrome (23388332).

The spelling of 20253130 in words is "twenty million, two hundred fifty-three thousand, one hundred thirty".