20465253 has 12 divisors (see below), whose sum is σ = 29978208. Its totient is φ = 13450920.

The previous prime is 20465243. The next prime is 20465267. The reversal of 20465253 is 35256402.

20465253 is a `hidden beast` number, since 2 + 0 + 4 + 652 + 5 + 3 = 666.

It is not a de Polignac number, because 20465253 - 2⁶ = 20465189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20465233) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 15375 + ... + 16652.

It is an arithmetic number, because the mean of its divisors is an integer number (2498184).

Almost surely, 2^20465253 is an apocalyptic number.

It is an amenable number.

20465253 is a deficient number, since it is larger than the sum of its proper divisors (9512955).

20465253 is a wasteful number, since it uses less digits than its factorization.

20465253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32104 (or 32101 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 20465253 is about 4523.8537774778. The cubic root of 20465253 is about 273.5304663892.

The spelling of 20465253 in words is "twenty million, four hundred sixty-five thousand, two hundred fifty-three".