2500039 has 4 divisors (see below), whose sum is σ = 2631640. Its totient is φ = 2368440.

The previous prime is 2500027. The next prime is 2500049. The reversal of 2500039 is 9300052.

2500039 = 643² + 644² + ... + 648².

2500039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2500039 - 2¹¹ = 2497991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 131581 = 2500039 / (2 + 5 + 0 + 0 + 0 + 3 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2499989 and 2500025.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65772 + ... + 65809.

It is an arithmetic number, because the mean of its divisors is an integer number (657910).

2^2500039 is an apocalyptic number.

2500039 is a deficient number, since it is larger than the sum of its proper divisors (131601).

2500039 is a wasteful number, since it uses less digits than its factorization.

2500039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131600.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 2500039 is about 1581.1511629190. The cubic root of 2500039 is about 135.7215865747.

The spelling of 2500039 in words is "two million, five hundred thousand, thirty-nine".