20353425 has 24 divisors (see below), whose sum is σ = 34476960. Its totient is φ = 10588800.

The previous prime is 20353393. The next prime is 20353429. The reversal of 20353425 is 52435302.

It is not a de Polignac number, because 20353425 - 2⁵ = 20353393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20353395 and 20353404.

It is not an unprimeable number, because it can be changed into a prime (20353429) 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 23 ways as a sum of consecutive naturals, for example, 235 + ... + 6384.

It is an arithmetic number, because the mean of its divisors is an integer number (1436540).

Almost surely, 2^20353425 is an apocalyptic number.

20353425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20353425 is a deficient number, since it is larger than the sum of its proper divisors (14123535).

20353425 is a wasteful number, since it uses less digits than its factorization.

20353425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673 (or 6668 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 20353425 is about 4511.4770308625. The cubic root of 20353425 is about 273.0313399060.

Adding to 20353425 its reverse (52435302), we get a palindrome (72788727).

It can be divided in two parts, 2035 and 3425, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 20353425 in words is "twenty million, three hundred fifty-three thousand, four hundred twenty-five".