331225005 has 16 divisors (see below), whose sum is σ = 557853120. Its totient is φ = 167355648.

The previous prime is 331225003. The next prime is 331225021. The reversal of 331225005 is 500522133.

It is not a de Polignac number, because 331225005 - 2¹ = 331225003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331225003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580812 + ... + 581381.

It is an arithmetic number, because the mean of its divisors is an integer number (34865820).

Almost surely, 2^331225005 is an apocalyptic number.

It is an amenable number.

331225005 is a deficient number, since it is larger than the sum of its proper divisors (226628115).

331225005 is a wasteful number, since it uses less digits than its factorization.

331225005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162220.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 331225005 is about 18199.5880447883. The cubic root of 331225005 is about 691.8963482305.

Adding to 331225005 its reverse (500522133), we get a palindrome (831747138).

The spelling of 331225005 in words is "three hundred thirty-one million, two hundred twenty-five thousand, five".