2505775 has 12 divisors (see below), whose sum is σ = 3138192. Its totient is φ = 1984640.

The previous prime is 2505773. The next prime is 2505779. The reversal of 2505775 is 5775052.

It is not a de Polignac number, because 2505775 - 2¹ = 2505773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2382 + ... + 3268.

It is an arithmetic number, because the mean of its divisors is an integer number (261516).

2^2505775 is an apocalyptic number.

2505775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2505775 is a deficient number, since it is larger than the sum of its proper divisors (632417).

2505775 is a wasteful number, since it uses less digits than its factorization.

2505775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 12250, while the sum is 31.

The square root of 2505775 is about 1582.9639920099. The cubic root of 2505775 is about 135.8253055422.

The spelling of 2505775 in words is "two million, five hundred five thousand, seven hundred seventy-five".