421725033 has 24 divisors (see below), whose sum is σ = 641509440. Its totient is φ = 266444640.

The previous prime is 421725011. The next prime is 421725043. The reversal of 421725033 is 330527124.

It is not a de Polignac number, because 421725033 - 2⁸ = 421724777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421724988 and 421725006.

It is not an unprimeable number, because it can be changed into a prime (421725043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13218 + ... + 31908.

It is an arithmetic number, because the mean of its divisors is an integer number (26729560).

Almost surely, 2^421725033 is an apocalyptic number.

It is an amenable number.

421725033 is a deficient number, since it is larger than the sum of its proper divisors (219784407).

421725033 is a wasteful number, since it uses less digits than its factorization.

421725033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18829 (or 18826 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 421725033 is about 20535.9449015622. The cubic root of 421725033 is about 749.9111201342.

The spelling of 421725033 in words is "four hundred twenty-one million, seven hundred twenty-five thousand, thirty-three".