9005521604 has 12 divisors (see below), whose sum is σ = 15936738300. Its totient is φ = 4452167808.

The previous prime is 9005521579. The next prime is 9005521619. The reversal of 9005521604 is 4061255009.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6272323204 + 2733198400 = 79198^2 + 52280^2 .

It is a super-2 number, since 2×9005521604² (a number of 21 digits) contains 22 as substring.

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, 12647849 + ... + 12648560.

It is an arithmetic number, because the mean of its divisors is an integer number (1328061525).

Almost surely, 2^9005521604 is an apocalyptic number.

It is an amenable number.

9005521604 is a deficient number, since it is larger than the sum of its proper divisors (6931216696).

9005521604 is a wasteful number, since it uses less digits than its factorization.

9005521604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25296502 (or 25296500 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 9005521604 is about 94897.4267512033. The cubic root of 9005521604 is about 2080.5091212426.

The spelling of 9005521604 in words is "nine billion, five million, five hundred twenty-one thousand, six hundred four".