525103321 has 4 divisors (see below), whose sum is σ = 532940752. Its totient is φ = 517265892.

The previous prime is 525103309. The next prime is 525103351. The reversal of 525103321 is 123301525.

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.

It is a cyclic number.

It is not a de Polignac number, because 525103321 - 2⁵ = 525103289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525103292 and 525103301.

It is not an unprimeable number, because it can be changed into a prime (525103351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3918615 + ... + 3918748.

It is an arithmetic number, because the mean of its divisors is an integer number (133235188).

Almost surely, 2^525103321 is an apocalyptic number.

It is an amenable number.

525103321 is a deficient number, since it is larger than the sum of its proper divisors (7837431).

525103321 is an equidigital number, since it uses as much as digits as its factorization.

525103321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7837430.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 525103321 is about 22915.1330129240. The cubic root of 525103321 is about 806.7672405128.

Adding to 525103321 its reverse (123301525), we get a palindrome (648404846).

The spelling of 525103321 in words is "five hundred twenty-five million, one hundred three thousand, three hundred twenty-one".