20234425 has 6 divisors (see below), whose sum is σ = 25090718. Its totient is φ = 16187520.

The previous prime is 20234387. The next prime is 20234429. The reversal of 20234425 is 52443202.

It can be written as a sum of positive squares in 3 ways, for example, as 5588496 + 14645929 = 2364^2 + 3827^2 .

It is not a de Polignac number, because 20234425 - 2¹³ = 20226233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20234396 and 20234405.

It is not an unprimeable number, because it can be changed into a prime (20234429) 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 5 ways as a sum of consecutive naturals, for example, 404664 + ... + 404713.

Almost surely, 2^20234425 is an apocalyptic number.

20234425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20234425 is a deficient number, since it is larger than the sum of its proper divisors (4856293).

20234425 is an equidigital number, since it uses as much as digits as its factorization.

20234425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809387 (or 809382 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 20234425 is about 4498.2691115584. The cubic root of 20234425 is about 272.4981903760.

Adding to 20234425 its reverse (52443202), we get a palindrome (72677627).

The spelling of 20234425 in words is "twenty million, two hundred thirty-four thousand, four hundred twenty-five".