20253648 has 40 divisors (see below), whose sum is σ = 52737696. Its totient is φ = 6697600.

The previous prime is 20253589. The next prime is 20253661. The reversal of 20253648 is 84635202.

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 7 ways as a sum of consecutive naturals, for example, 4678 + ... + 7898.

Almost surely, 2^20253648 is an apocalyptic number.

It is an amenable number.

20253648 is an abundant number, since it is smaller than the sum of its proper divisors (32484048).

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

20253648 is a wasteful number, since it uses less digits than its factorization.

20253648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363 (or 3357 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 20253648 is about 4500.4053150800. The cubic root of 20253648 is about 272.5844554875.

The spelling of 20253648 in words is "twenty million, two hundred fifty-three thousand, six hundred forty-eight".