9005601556 has 48 divisors (see below), whose sum is σ = 19685901312. Its totient is φ = 3515328000.

The previous prime is 9005601547. The next prime is 9005601611. The reversal of 9005601556 is 6551065009.

It is a super-2 number, since 2×9005601556² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290395 + ... + 319906.

It is an arithmetic number, because the mean of its divisors is an integer number (410122944).

Almost surely, 2^9005601556 is an apocalyptic number.

It is an amenable number.

9005601556 is an abundant number, since it is smaller than the sum of its proper divisors (10680299756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9005601556 is a wasteful number, since it uses less digits than its factorization.

9005601556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610360 (or 610358 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 9005601556 is about 94897.8480051049. The cubic root of 9005601556 is about 2080.5152782198.

The spelling of 9005601556 in words is "nine billion, five million, six hundred one thousand, five hundred fifty-six".