201420025 has 6 divisors (see below), whose sum is σ = 249760862. Its totient is φ = 161136000.

The previous prime is 201420017. The next prime is 201420031. The reversal of 201420025 is 520024102.

It can be written as a sum of positive squares in 3 ways, for example, as 54331641 + 147088384 = 7371^2 + 12128^2 .

It is not a de Polignac number, because 201420025 - 2³ = 201420017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201419990 and 201420008.

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, 4028376 + ... + 4028425.

Almost surely, 2^201420025 is an apocalyptic number.

201420025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201420025 is a deficient number, since it is larger than the sum of its proper divisors (48340837).

201420025 is an equidigital number, since it uses as much as digits as its factorization.

201420025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8056811 (or 8056806 counting only the distinct ones).

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

The square root of 201420025 is about 14192.2522877801. The cubic root of 201420025 is about 586.1843442672.

Adding to 201420025 its reverse (520024102), we get a palindrome (721444127).

The spelling of 201420025 in words is "two hundred one million, four hundred twenty thousand, twenty-five".