352552221 has 12 divisors (see below), whose sum is σ = 581991072. Its totient is φ = 201458376.

The previous prime is 352552219. The next prime is 352552271. The reversal of 352552221 is 122255253.

It is not a de Polignac number, because 352552221 - 2¹ = 352552219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352552271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2797971 + ... + 2798096.

It is an arithmetic number, because the mean of its divisors is an integer number (48499256).

Almost surely, 2^352552221 is an apocalyptic number.

It is an amenable number.

352552221 is a deficient number, since it is larger than the sum of its proper divisors (229438851).

352552221 is a wasteful number, since it uses less digits than its factorization.

352552221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5596080 (or 5596077 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 352552221 is about 18776.3740109745. The cubic root of 352552221 is about 706.4387037875.

The spelling of 352552221 in words is "three hundred fifty-two million, five hundred fifty-two thousand, two hundred twenty-one".