2500005 has 8 divisors (see below), whose sum is σ = 4000032. Its totient is φ = 1333328.

The previous prime is 2499997. The next prime is 2500009. The reversal of 2500005 is 5000052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2500005 - 2³ = 2499997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83319 + ... + 83348.

It is an arithmetic number, because the mean of its divisors is an integer number (500004).

2^2500005 is an apocalyptic number.

It is an amenable number.

2500005 is a deficient number, since it is larger than the sum of its proper divisors (1500027).

2500005 is a wasteful number, since it uses less digits than its factorization.

2500005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166675.

The product of its (nonzero) digits is 50, while the sum is 12.

The square root of 2500005 is about 1581.1404112222. The cubic root of 2500005 is about 135.7209713103.

Adding to 2500005 its reverse (5000052), we get a palindrome (7500057).

The spelling of 2500005 in words is "two million, five hundred thousand, five".