2605905252 has 36 divisors (see below), whose sum is σ = 6933843280. Its totient is φ = 822917232.

The previous prime is 2605905187. The next prime is 2605905277. The reversal of 2605905252 is 2525095062.

2605905252 is a `hidden beast` number, since 2 + 60 + 590 + 5 + 2 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 1904218 + ... + 1905585.

Almost surely, 2^2605905252 is an apocalyptic number.

It is an amenable number.

2605905252 is an abundant number, since it is smaller than the sum of its proper divisors (4327938028).

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

2605905252 is a wasteful number, since it uses less digits than its factorization.

2605905252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3809832 (or 3809827 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 2605905252 is about 51048.0680535513. The cubic root of 2605905252 is about 1376.1091219853.

The spelling of 2605905252 in words is "two billion, six hundred five million, nine hundred five thousand, two hundred fifty-two".