420203425 has 12 divisors (see below), whose sum is σ = 523676800. Its totient is φ = 334469520.

The previous prime is 420203401. The next prime is 420203447. The reversal of 420203425 is 524302024.

It is a de Polignac number, because none of the positive numbers 2^k-420203425 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420203396 and 420203405.

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, 37257 + ... + 47206.

Almost surely, 2^420203425 is an apocalyptic number.

It is an amenable number.

420203425 is a deficient number, since it is larger than the sum of its proper divisors (103473375).

420203425 is a wasteful number, since it uses less digits than its factorization.

420203425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84672 (or 84667 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 420203425 is about 20498.8639929143. The cubic root of 420203425 is about 749.0081258629.

Adding to 420203425 its reverse (524302024), we get a palindrome (944505449).

The spelling of 420203425 in words is "four hundred twenty million, two hundred three thousand, four hundred twenty-five".