2505975 has 12 divisors (see below), whose sum is σ = 4143336. Its totient is φ = 1336480.

The previous prime is 2505917. The next prime is 2505983. The reversal of 2505975 is 5795052.

It is not a de Polignac number, because 2505975 - 2⁷ = 2505847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16632 + ... + 16781.

It is an arithmetic number, because the mean of its divisors is an integer number (345278).

2^2505975 is an apocalyptic number.

2505975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2505975 is a deficient number, since it is larger than the sum of its proper divisors (1637361).

2505975 is a wasteful number, since it uses less digits than its factorization.

2505975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33426 (or 33421 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 33.

The square root of 2505975 is about 1583.0271633803. The cubic root of 2505975 is about 135.8289191066.

The spelling of 2505975 in words is "two million, five hundred five thousand, nine hundred seventy-five".