421510034225 has 24 divisors (see below), whose sum is σ = 597375866688. Its totient is φ = 289018065600.

The previous prime is 421510034207. The next prime is 421510034233. The reversal of 421510034225 is 522430015124.

It is not a de Polignac number, because 421510034225 - 2⁸ = 421510033969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3289610 + ... + 3415340.

It is an arithmetic number, because the mean of its divisors is an integer number (24890661112).

Almost surely, 2^421510034225 is an apocalyptic number.

It is an amenable number.

421510034225 is a deficient number, since it is larger than the sum of its proper divisors (175865832463).

421510034225 is a wasteful number, since it uses less digits than its factorization.

421510034225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144905 (or 144900 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 421510034225 its reverse (522430015124), we get a palindrome (943940049349).

The spelling of 421510034225 in words is "four hundred twenty-one billion, five hundred ten million, thirty-four thousand, two hundred twenty-five".