20544153 has 16 divisors (see below), whose sum is σ = 32034816. Its totient is φ = 11466000.

The previous prime is 20544119. The next prime is 20544169. The reversal of 20544153 is 35144502.

It is not a de Polignac number, because 20544153 - 2⁶ = 20544089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20544113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10473 + ... + 12278.

It is an arithmetic number, because the mean of its divisors is an integer number (2002176).

Almost surely, 2^20544153 is an apocalyptic number.

It is an amenable number.

20544153 is a deficient number, since it is larger than the sum of its proper divisors (11490663).

20544153 is a wasteful number, since it uses less digits than its factorization.

20544153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22804.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 20544153 is about 4532.5658296378. The cubic root of 20544153 is about 273.8815310040.

Adding to 20544153 its reverse (35144502), we get a palindrome (55688655).

The spelling of 20544153 in words is "twenty million, five hundred forty-four thousand, one hundred fifty-three".