2005171528 has 32 divisors (see below), whose sum is σ = 3929016960. Its totient is φ = 958426560.

The previous prime is 2005171507. The next prime is 2005171559. The reversal of 2005171528 is 8251715002.

It is a self number, because there is not a number n which added to its sum of digits gives 2005171528.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45843 + ... + 78178.

It is an arithmetic number, because the mean of its divisors is an integer number (122781780).

Almost surely, 2^2005171528 is an apocalyptic number.

It is an amenable number.

2005171528 is a deficient number, since it is larger than the sum of its proper divisors (1923845432).

2005171528 is a wasteful number, since it uses less digits than its factorization.

2005171528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124117 (or 124113 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 2005171528 is about 44779.1416621623. The cubic root of 2005171528 is about 1261.0060680625.

The spelling of 2005171528 in words is "two billion, five million, one hundred seventy-one thousand, five hundred twenty-eight".