2005629001 has 4 divisors (see below), whose sum is σ = 2005778052. Its totient is φ = 2005479952.

The previous prime is 2005628971. The next prime is 2005629007. The reversal of 2005629001 is 1009265002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1105629001 + 900000000 = 33251^2 + 30000^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005629001 - 2⁵ = 2005628969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005629007) 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 in 3 ways as a sum of consecutive naturals, for example, 52090 + ... + 82003.

It is an arithmetic number, because the mean of its divisors is an integer number (501444513).

Almost surely, 2^2005629001 is an apocalyptic number.

It is an amenable number.

2005629001 is a deficient number, since it is larger than the sum of its proper divisors (149051).

2005629001 is a wasteful number, since it uses less digits than its factorization.

2005629001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149050.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2005629001 is about 44784.2494745642. The cubic root of 2005629001 is about 1261.1019588388.

The spelling of 2005629001 in words is "two billion, five million, six hundred twenty-nine thousand, one".