20253118 has 8 divisors (see below), whose sum is σ = 30413880. Its totient is φ = 10115160.

The previous prime is 20253109. The next prime is 20253119. The reversal of 20253118 is 81135202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20253119) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3273 + ... + 7156.

It is an arithmetic number, because the mean of its divisors is an integer number (3801735).

Almost surely, 2^20253118 is an apocalyptic number.

20253118 is a deficient number, since it is larger than the sum of its proper divisors (10160762).

20253118 is a wasteful number, since it uses less digits than its factorization.

20253118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11402.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 20253118 is about 4500.3464311095. The cubic root of 20253118 is about 272.5820777921.

The spelling of 20253118 in words is "twenty million, two hundred fifty-three thousand, one hundred eighteen".