20201425 has 12 divisors (see below), whose sum is σ = 25105536. Its totient is φ = 16125200.

The previous prime is 20201407. The next prime is 20201437. The reversal of 20201425 is 52410202.

It is not a de Polignac number, because 20201425 - 2⁵ = 20201393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20201399 and 20201408.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21720 + ... + 22630.

It is an arithmetic number, because the mean of its divisors is an integer number (2092128).

Almost surely, 2^20201425 is an apocalyptic number.

20201425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20201425 is a deficient number, since it is larger than the sum of its proper divisors (4904111).

20201425 is an equidigital number, since it uses as much as digits as its factorization.

20201425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808 (or 1803 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20201425 is about 4494.5995372224. The cubic root of 20201425 is about 272.3499721249.

Adding to 20201425 its reverse (52410202), we get a palindrome (72611627).

The spelling of 20201425 in words is "twenty million, two hundred one thousand, four hundred twenty-five".