20144025 has 48 divisors (see below), whose sum is σ = 40384320. Its totient is φ = 9763200.

The previous prime is 20144023. The next prime is 20144027. The reversal of 20144025 is 52044102.

20144025 is a `hidden beast` number, since 201 + 440 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (20144023) and next prime (20144027).

It is not a de Polignac number, because 20144025 - 2¹ = 20144023 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20143989 and 20144007.

It is not an unprimeable number, because it can be changed into a prime (20144023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6069 + ... + 8781.

It is an arithmetic number, because the mean of its divisors is an integer number (841340).

Almost surely, 2^20144025 is an apocalyptic number.

20144025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20144025 is an abundant number, since it is smaller than the sum of its proper divisors (20240295).

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

20144025 is a wasteful number, since it uses less digits than its factorization.

20144025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 20144025 is about 4488.2095539313. The cubic root of 20144025 is about 272.0917771681.

Adding to 20144025 its reverse (52044102), we get a palindrome (72188127).

The spelling of 20144025 in words is "twenty million, one hundred forty-four thousand, twenty-five".