20253008 has 10 divisors (see below), whose sum is σ = 39240234. Its totient is φ = 10126496.

The previous prime is 20253007. The next prime is 20253011. The reversal of 20253008 is 80035202.

It can be written as a sum of positive squares in only one way, i.e., 14531344 + 5721664 = 3812^2 + 2392^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20253007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632891 + ... + 632922.

Almost surely, 2^20253008 is an apocalyptic number.

It is an amenable number.

20253008 is a deficient number, since it is larger than the sum of its proper divisors (18987226).

20253008 is a wasteful number, since it uses less digits than its factorization.

20253008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265821 (or 1265815 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20253008 is about 4500.3342098115. The cubic root of 20253008 is about 272.5815843029.

The spelling of 20253008 in words is "twenty million, two hundred fifty-three thousand, eight".