20201253 has 8 divisors (see below), whose sum is σ = 28519488. Its totient is φ = 12675264.

The previous prime is 20201249. The next prime is 20201267. The reversal of 20201253 is 35210202.

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

It is not a de Polignac number, because 20201253 - 2² = 20201249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201273) 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 7 ways as a sum of consecutive naturals, for example, 198001 + ... + 198102.

It is an arithmetic number, because the mean of its divisors is an integer number (3564936).

Almost surely, 2^20201253 is an apocalyptic number.

It is an amenable number.

20201253 is a deficient number, since it is larger than the sum of its proper divisors (8318235).

20201253 is a wasteful number, since it uses less digits than its factorization.

20201253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396123.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20201253 is about 4494.5804031077. The cubic root of 20201253 is about 272.3491991707.

Adding to 20201253 its reverse (35210202), we get a palindrome (55411455).

The spelling of 20201253 in words is "twenty million, two hundred one thousand, two hundred fifty-three".