421325015 has 16 divisors (see below), whose sum is σ = 513324000. Its totient is φ = 331930752.

The previous prime is 421324997. The next prime is 421325027. The reversal of 421325015 is 510523124.

It is a cyclic number.

It is not a de Polignac number, because 421325015 - 2⁸ = 421324759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143381 + ... + 146289.

It is an arithmetic number, because the mean of its divisors is an integer number (32082750).

Almost surely, 2^421325015 is an apocalyptic number.

421325015 is a deficient number, since it is larger than the sum of its proper divisors (91998985).

421325015 is a wasteful number, since it uses less digits than its factorization.

421325015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3346.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 421325015 is about 20526.2031316072. The cubic root of 421325015 is about 749.6739412311.

Adding to 421325015 its reverse (510523124), we get a palindrome (931848139).

The spelling of 421325015 in words is "four hundred twenty-one million, three hundred twenty-five thousand, fifteen".