2495609 has 4 divisors (see below), whose sum is σ = 2520420. Its totient is φ = 2470800.

The previous prime is 2495599. The next prime is 2495621. The reversal of 2495609 is 9065942.

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 2111209 + 384400 = 1453^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 2495609 - 2¹⁶ = 2430073 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2495509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12254 + ... + 12455.

It is an arithmetic number, because the mean of its divisors is an integer number (630105).

2^2495609 is an apocalyptic number.

It is an amenable number.

2495609 is a deficient number, since it is larger than the sum of its proper divisors (24811).

2495609 is a wasteful number, since it uses less digits than its factorization.

2495609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24810.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 2495609 is about 1579.7496637126. The cubic root of 2495609 is about 135.6413742114.

The spelling of 2495609 in words is "two million, four hundred ninety-five thousand, six hundred nine".