20301425 has 6 divisors (see below), whose sum is σ = 25173798. Its totient is φ = 16241120.

The previous prime is 20301409. The next prime is 20301517. The reversal of 20301425 is 52410302.

It can be written as a sum of positive squares in 3 ways, for example, as 6964321 + 13337104 = 2639^2 + 3652^2 .

It is not a de Polignac number, because 20301425 - 2⁴ = 20301409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 406004 + ... + 406053.

It is an arithmetic number, because the mean of its divisors is an integer number (4195633).

Almost surely, 2^20301425 is an apocalyptic number.

20301425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20301425 is a deficient number, since it is larger than the sum of its proper divisors (4872373).

20301425 is an equidigital number, since it uses as much as digits as its factorization.

20301425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812067 (or 812062 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20301425 is about 4505.7102658737. The cubic root of 20301425 is about 272.7986233351.

Adding to 20301425 its reverse (52410302), we get a palindrome (72711727).

The spelling of 20301425 in words is "twenty million, three hundred one thousand, four hundred twenty-five".