352825409 has 4 divisors (see below), whose sum is σ = 354938304. Its totient is φ = 350712516.

The previous prime is 352825391. The next prime is 352825411. The reversal of 352825409 is 904528253.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 904528253 = 971 ⋅931543.

It is a cyclic number.

It is not a de Polignac number, because 352825409 - 2⁸ = 352825153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (352825489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056197 + ... + 1056530.

It is an arithmetic number, because the mean of its divisors is an integer number (88734576).

Almost surely, 2^352825409 is an apocalyptic number.

It is an amenable number.

352825409 is a deficient number, since it is larger than the sum of its proper divisors (2112895).

352825409 is a wasteful number, since it uses less digits than its factorization.

352825409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112894.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 352825409 is about 18783.6473827636. The cubic root of 352825409 is about 706.6211266438.

The spelling of 352825409 in words is "three hundred fifty-two million, eight hundred twenty-five thousand, four hundred nine".