2005335172 has 6 divisors (see below), whose sum is σ = 3509336558. Its totient is φ = 1002667584.

The previous prime is 2005335151. The next prime is 2005335173. The reversal of 2005335172 is 2715335002.

It can be written as a sum of positive squares in only one way, i.e., 1537737796 + 467597376 = 39214^2 + 21624^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2005335172.

It is not an unprimeable number, because it can be changed into a prime (2005335173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250666893 + ... + 250666900.

Almost surely, 2^2005335172 is an apocalyptic number.

It is an amenable number.

2005335172 is a deficient number, since it is larger than the sum of its proper divisors (1504001386).

2005335172 is a wasteful number, since it uses less digits than its factorization.

2005335172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501333797 (or 501333795 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 2005335172 is about 44780.9688595501. The cubic root of 2005335172 is about 1261.0403711068.

It can be divided in two parts, 20053 and 35172, that added together give a square (55225 = 235²).

The spelling of 2005335172 in words is "two billion, five million, three hundred thirty-five thousand, one hundred seventy-two".