421055225 has 12 divisors (see below), whose sum is σ = 522396624. Its totient is φ = 336658320.

The previous prime is 421055207. The next prime is 421055251. The reversal of 421055225 is 522550124.

It is not a de Polignac number, because 421055225 - 2⁸ = 421054969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421055194 and 421055203.

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, 58262 + ... + 65088.

It is an arithmetic number, because the mean of its divisors is an integer number (43533052).

Almost surely, 2^421055225 is an apocalyptic number.

It is an amenable number.

421055225 is a deficient number, since it is larger than the sum of its proper divisors (101341399).

421055225 is a wasteful number, since it uses less digits than its factorization.

421055225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9304 (or 9299 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 421055225 is about 20519.6302354599. The cubic root of 421055225 is about 749.5138924080.

The spelling of 421055225 in words is "four hundred twenty-one million, fifty-five thousand, two hundred twenty-five".