2509895 has 8 divisors (see below), whose sum is σ = 3093504. Its totient is φ = 1953504.

The previous prime is 2509891. The next prime is 2509907. The reversal of 2509895 is 5989052.

It is a happy number.

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 2509895 - 2² = 2509891 is a prime.

It is a super-2 number, since 2×2509895² = 12599145822050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509891) 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, 6599 + ... + 6968.

It is an arithmetic number, because the mean of its divisors is an integer number (386688).

2^2509895 is an apocalyptic number.

2509895 is a deficient number, since it is larger than the sum of its proper divisors (583609).

2509895 is a wasteful number, since it uses less digits than its factorization.

2509895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13609.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 2509895 is about 1584.2648137228. The cubic root of 2509895 is about 135.8997061887.

The spelling of 2509895 in words is "two million, five hundred nine thousand, eight hundred ninety-five".