19853253 has 24 divisors (see below), whose sum is σ = 33196800. Its totient is φ = 11198304.

The previous prime is 19853221. The next prime is 19853279. The reversal of 19853253 is 35235891.

It is not a de Polignac number, because 19853253 - 2⁵ = 19853221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19853753) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2983 + ... + 6971.

It is an arithmetic number, because the mean of its divisors is an integer number (1383200).

Almost surely, 2^19853253 is an apocalyptic number.

It is an amenable number.

19853253 is a deficient number, since it is larger than the sum of its proper divisors (13343547).

19853253 is a wasteful number, since it uses less digits than its factorization.

19853253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081 (or 4078 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 19853253 is about 4455.6989350718. The cubic root of 19853253 is about 270.7762435459.

The spelling of 19853253 in words is "nineteen million, eight hundred fifty-three thousand, two hundred fifty-three".