420125025 has 12 divisors (see below), whose sum is σ = 694606832. Its totient is φ = 224066640.

The previous prime is 420125009. The next prime is 420125033. The reversal of 420125025 is 520521024.

It is a happy number.

It is not a de Polignac number, because 420125025 - 2⁴ = 420125009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420124992 and 420125010.

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, 2800759 + ... + 2800908.

Almost surely, 2^420125025 is an apocalyptic number.

It is an amenable number.

420125025 is a deficient number, since it is larger than the sum of its proper divisors (274481807).

420125025 is a wasteful number, since it uses less digits than its factorization.

420125025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601680 (or 5601675 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 420125025 is about 20496.9516026164. The cubic root of 420125025 is about 748.9615405774.

Adding to 420125025 its reverse (520521024), we get a palindrome (940646049).

The spelling of 420125025 in words is "four hundred twenty million, one hundred twenty-five thousand, twenty-five".