325520222 has 4 divisors (see below), whose sum is σ = 488280336. Its totient is φ = 162760110.

The previous prime is 325520207. The next prime is 325520281. The reversal of 325520222 is 222025523.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222025523 = 1493 ⋅148711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81380054 + ... + 81380057.

It is an arithmetic number, because the mean of its divisors is an integer number (122070084).

Almost surely, 2^325520222 is an apocalyptic number.

325520222 is a deficient number, since it is larger than the sum of its proper divisors (162760114).

325520222 is a wasteful number, since it uses less digits than its factorization.

325520222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162760113.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 325520222 is about 18042.1789704016. The cubic root of 325520222 is about 687.9010795561.

Adding to 325520222 its reverse (222025523), we get a palindrome (547545745).

The spelling of 325520222 in words is "three hundred twenty-five million, five hundred twenty thousand, two hundred twenty-two".