525125321 has 8 divisors (see below), whose sum is σ = 603738240. Its totient is φ = 447411168.

The previous prime is 525125317. The next prime is 525125323. The reversal of 525125321 is 123521525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 525125321 - 2² = 525125317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (525125323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223436 + ... + 225773.

It is an arithmetic number, because the mean of its divisors is an integer number (75467280).

Almost surely, 2^525125321 is an apocalyptic number.

It is an amenable number.

525125321 is a deficient number, since it is larger than the sum of its proper divisors (78612919).

525125321 is a wasteful number, since it uses less digits than its factorization.

525125321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449383.

The product of its digits is 3000, while the sum is 26.

The square root of 525125321 is about 22915.6130400214. The cubic root of 525125321 is about 806.7785072678.

Adding to 525125321 its reverse (123521525), we get a palindrome (648646846).

The spelling of 525125321 in words is "five hundred twenty-five million, one hundred twenty-five thousand, three hundred twenty-one".