525034221 has 4 divisors (see below), whose sum is σ = 700045632. Its totient is φ = 350022812.

The previous prime is 525034217. The next prime is 525034231. The reversal of 525034221 is 122430525.

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 525034221 - 2² = 525034217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 525034191 and 525034200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525034231) 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, 87505701 + ... + 87505706.

It is an arithmetic number, because the mean of its divisors is an integer number (175011408).

Almost surely, 2^525034221 is an apocalyptic number.

It is an amenable number.

525034221 is a deficient number, since it is larger than the sum of its proper divisors (175011411).

525034221 is a wasteful number, since it uses less digits than its factorization.

525034221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175011410.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 525034221 is about 22913.6252260527. The cubic root of 525034221 is about 806.7318506129.

Adding to 525034221 its reverse (122430525), we get a palindrome (647464746).

The spelling of 525034221 in words is "five hundred twenty-five million, thirty-four thousand, two hundred twenty-one".