4525343521 has 4 divisors (see below), whose sum is σ = 4630584112. Its totient is φ = 4420102932.

The previous prime is 4525343477. The next prime is 4525343527. The reversal of 4525343521 is 1253435254.

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 4525343521 - 2⁷ = 4525343393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4525343527) 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, 52620231 + ... + 52620316.

It is an arithmetic number, because the mean of its divisors is an integer number (1157646028).

Almost surely, 2^4525343521 is an apocalyptic number.

It is an amenable number.

4525343521 is a deficient number, since it is larger than the sum of its proper divisors (105240591).

4525343521 is a wasteful number, since it uses less digits than its factorization.

4525343521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105240590.

The product of its digits is 72000, while the sum is 34.

The square root of 4525343521 is about 67270.6735583939. The cubic root of 4525343521 is about 1654.0571746457.

Adding to 4525343521 its reverse (1253435254), we get a palindrome (5778778775).

It can be divided in two parts, 4 and 525343521, that added together give a palindrome (525343525).

The spelling of 4525343521 in words is "four billion, five hundred twenty-five million, three hundred forty-three thousand, five hundred twenty-one".