20412425 has 24 divisors (see below), whose sum is σ = 27825600. Its totient is φ = 14731200.

The previous prime is 20412409. The next prime is 20412463. The reversal of 20412425 is 52421402.

It is a happy number.

It is not a de Polignac number, because 20412425 - 2⁴ = 20412409 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20412397 and 20412406.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54539 + ... + 54911.

It is an arithmetic number, because the mean of its divisors is an integer number (1159400).

Almost surely, 2^20412425 is an apocalyptic number.

20412425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20412425 is a deficient number, since it is larger than the sum of its proper divisors (7413175).

20412425 is a wasteful number, since it uses less digits than its factorization.

20412425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 20412425 is about 4518.0111774983. The cubic root of 20412425 is about 273.2949042080.

Adding to 20412425 its reverse (52421402), we get a palindrome (72833827).

The spelling of 20412425 in words is "twenty million, four hundred twelve thousand, four hundred twenty-five".