2005557369 has 16 divisors (see below), whose sum is σ = 2905620480. Its totient is φ = 1225806480.

The previous prime is 2005557343. The next prime is 2005557373. The reversal of 2005557369 is 9637555002.

It is not a de Polignac number, because 2005557369 - 2¹⁹ = 2005033081 is a prime.

It is a super-2 number, since 2×2005557369² = 8044520720700404322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2005557369.

It is not an unprimeable number, because it can be changed into a prime (2005557319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565737 + ... + 569270.

It is an arithmetic number, because the mean of its divisors is an integer number (181601280).

Almost surely, 2^2005557369 is an apocalyptic number.

It is an amenable number.

2005557369 is a deficient number, since it is larger than the sum of its proper divisors (900063111).

2005557369 is a wasteful number, since it uses less digits than its factorization.

2005557369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135060.

The product of its (nonzero) digits is 283500, while the sum is 42.

The square root of 2005557369 is about 44783.4497219676. The cubic root of 2005557369 is about 1261.0869450400.

The spelling of 2005557369 in words is "two billion, five million, five hundred fifty-seven thousand, three hundred sixty-nine".