352525404321 has 6 divisors (see below), whose sum is σ = 509203361810. Its totient is φ = 235016936208.

The previous prime is 352525404181. The next prime is 352525404373. The reversal of 352525404321 is 123404525253.

352525404321 is a `hidden beast` number, since 3 + 5 + 2 + 52 + 540 + 43 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 348784736400 + 3740667921 = 590580^2 + 61161^2 .

It is not a de Polignac number, because 352525404321 - 2¹³ = 352525396129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (352525404821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19584744676 + ... + 19584744693.

Almost surely, 2^352525404321 is an apocalyptic number.

It is an amenable number.

352525404321 is a deficient number, since it is larger than the sum of its proper divisors (156677957489).

352525404321 is a wasteful number, since it uses less digits than its factorization.

352525404321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39169489375 (or 39169489372 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 352525404321 its reverse (123404525253), we get a palindrome (475929929574).

The spelling of 352525404321 in words is "three hundred fifty-two billion, five hundred twenty-five million, four hundred four thousand, three hundred twenty-one".