8721532522 has 8 divisors (see below), whose sum is σ = 13091196672. Its totient is φ = 4357800300.

The previous prime is 8721532499. The next prime is 8721532537. The reversal of 8721532522 is 2252351278.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1479304 + ... + 1485187.

It is an arithmetic number, because the mean of its divisors is an integer number (1636399584).

Almost surely, 2^8721532522 is an apocalyptic number.

8721532522 is a deficient number, since it is larger than the sum of its proper divisors (4369664150).

8721532522 is a wasteful number, since it uses less digits than its factorization.

8721532522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965964.

The product of its digits is 67200, while the sum is 37.

The square root of 8721532522 is about 93389.1456326698. The cubic root of 8721532522 is about 2058.4055058559.

The spelling of 8721532522 in words is "eight billion, seven hundred twenty-one million, five hundred thirty-two thousand, five hundred twenty-two".