6525121223 has 8 divisors (see below), whose sum is σ = 6624781680. Its totient is φ = 6425527680.

The previous prime is 6525121219. The next prime is 6525121231. The reversal of 6525121223 is 3221215256.

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 6525121223 - 2² = 6525121219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6525121243) 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, 201263 + ... + 231423.

It is an arithmetic number, because the mean of its divisors is an integer number (828097710).

Almost surely, 2^6525121223 is an apocalyptic number.

6525121223 is a deficient number, since it is larger than the sum of its proper divisors (99660457).

6525121223 is a wasteful number, since it uses less digits than its factorization.

6525121223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33457.

The product of its digits is 7200, while the sum is 29.

The square root of 6525121223 is about 80778.2224550652. Note that the first 3 decimals coincide. The cubic root of 6525121223 is about 1868.6567247949.

Adding to 6525121223 its reverse (3221215256), we get a palindrome (9746336479).

The spelling of 6525121223 in words is "six billion, five hundred twenty-five million, one hundred twenty-one thousand, two hundred twenty-three".