2509375 has 24 divisors (see below), whose sum is σ = 3468528. Its totient is φ = 1800000.

The previous prime is 2509363. The next prime is 2509379. The reversal of 2509375 is 5739052.

It is a happy number.

It is not a de Polignac number, because 2509375 - 2¹⁷ = 2378303 is a prime.

It is a Duffinian number.

2509375 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509379) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34339 + ... + 34411.

It is an arithmetic number, because the mean of its divisors is an integer number (144522).

2^2509375 is an apocalyptic number.

2509375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2509375 is a deficient number, since it is larger than the sum of its proper divisors (959153).

2509375 is an frugal number, since it uses more digits than its factorization.

2509375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 2509375 is about 1584.1006912441. The cubic root of 2509375 is about 135.8903203076.

The spelling of 2509375 in words is "two million, five hundred nine thousand, three hundred seventy-five".