2005125215 has 4 divisors (see below), whose sum is σ = 2406150264. Its totient is φ = 1604100168.

The previous prime is 2005125181. The next prime is 2005125251. The reversal of 2005125215 is 5125215002.

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

It is a cyclic number.

It is not a de Polignac number, because 2005125215 - 2⁶ = 2005125151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200512517 + ... + 200512526.

It is an arithmetic number, because the mean of its divisors is an integer number (601537566).

Almost surely, 2^2005125215 is an apocalyptic number.

2005125215 is a deficient number, since it is larger than the sum of its proper divisors (401025049).

2005125215 is an equidigital number, since it uses as much as digits as its factorization.

2005125215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401025048.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 2005125215 is about 44778.6245322475. The cubic root of 2005125215 is about 1260.9963595957.

The spelling of 2005125215 in words is "two billion, five million, one hundred twenty-five thousand, two hundred fifteen".