421193625 has 32 divisors (see below), whose sum is σ = 712782720. Its totient is φ = 220817600.

The previous prime is 421193609. The next prime is 421193627. The reversal of 421193625 is 526391124.

It is not a de Polignac number, because 421193625 - 2⁴ = 421193609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421193627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12607 + ... + 31643.

It is an arithmetic number, because the mean of its divisors is an integer number (22274460).

Almost surely, 2^421193625 is an apocalyptic number.

It is an amenable number.

421193625 is a deficient number, since it is larger than the sum of its proper divisors (291589095).

421193625 is a wasteful number, since it uses less digits than its factorization.

421193625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19114 (or 19104 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 421193625 is about 20523.0023388392. The cubic root of 421193625 is about 749.5960046450.

The spelling of 421193625 in words is "four hundred twenty-one million, one hundred ninety-three thousand, six hundred twenty-five".