2578375 has 8 divisors (see below), whose sum is σ = 3217968. Its totient is φ = 2062600.

The previous prime is 2578351. The next prime is 2578391. The reversal of 2578375 is 5738752.

It is not a de Polignac number, because 2578375 - 2⁵ = 2578343 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 7 ways as a sum of consecutive naturals, for example, 10189 + ... + 10438.

It is an arithmetic number, because the mean of its divisors is an integer number (402246).

2^2578375 is an apocalyptic number.

2578375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2578375 is a deficient number, since it is larger than the sum of its proper divisors (639593).

2578375 is an equidigital number, since it uses as much as digits as its factorization.

2578375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20642 (or 20632 counting only the distinct ones).

The product of its digits is 58800, while the sum is 37.

The square root of 2578375 is about 1605.7319203404. The cubic root of 2578375 is about 137.1245958345.

It can be divided in two parts, 25 and 78375, that added together give a square (78400 = 280²).

The spelling of 2578375 in words is "two million, five hundred seventy-eight thousand, three hundred seventy-five".