421002325 has 6 divisors (see below), whose sum is σ = 522042914. Its totient is φ = 336801840.

The previous prime is 421002319. The next prime is 421002343. The reversal of 421002325 is 523200124.

It can be written as a sum of positive squares in 3 ways, for example, as 140138244 + 280864081 = 11838^2 + 16759^2 .

It is not a de Polignac number, because 421002325 - 2¹¹ = 421000277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8420022 + ... + 8420071.

Almost surely, 2^421002325 is an apocalyptic number.

It is an amenable number.

421002325 is a deficient number, since it is larger than the sum of its proper divisors (101040589).

421002325 is a wasteful number, since it uses less digits than its factorization.

421002325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16840103 (or 16840098 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 421002325 is about 20518.3411853883. The cubic root of 421002325 is about 749.4825022695.

Adding to 421002325 its reverse (523200124), we get a palindrome (944202449).

The spelling of 421002325 in words is "four hundred twenty-one million, two thousand, three hundred twenty-five".