2539015 has 4 divisors (see below), whose sum is σ = 3046824. Its totient is φ = 2031208.

The previous prime is 2538983. The next prime is 2539049. The reversal of 2539015 is 5109352.

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 2539015 - 2⁵ = 2538983 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, 253897 + ... + 253906.

It is an arithmetic number, because the mean of its divisors is an integer number (761706).

2^2539015 is an apocalyptic number.

2539015 is a deficient number, since it is larger than the sum of its proper divisors (507809).

2539015 is an equidigital number, since it uses as much as digits as its factorization.

2539015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507808.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 2539015 is about 1593.4286931018. The cubic root of 2539015 is about 136.4232596506.

The spelling of 2539015 in words is "two million, five hundred thirty-nine thousand, fifteen".