2509495 has 8 divisors (see below), whose sum is σ = 3054240. Its totient is φ = 1979040.

The previous prime is 2509483. The next prime is 2509499. The reversal of 2509495 is 5949052.

2509495 = 402² + 403² + ... + 416².

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

It is not a de Polignac number, because 2509495 - 2¹⁷ = 2378423 is a prime.

2509495 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2509495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509499) 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, 3180 + ... + 3889.

It is an arithmetic number, because the mean of its divisors is an integer number (381780).

2^2509495 is an apocalyptic number.

2509495 is a deficient number, since it is larger than the sum of its proper divisors (544745).

2509495 is an equidigital number, since it uses as much as digits as its factorization.

2509495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 2509495 is about 1584.1385671714. The cubic root of 2509495 is about 135.8924863952.

The spelling of 2509495 in words is "two million, five hundred nine thousand, four hundred ninety-five".