2545005 has 8 divisors (see below), whose sum is σ = 4072032. Its totient is φ = 1357328.

The previous prime is 2545001. The next prime is 2545013. The reversal of 2545005 is 5005452.

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

It is a cyclic number.

It is not a de Polignac number, because 2545005 - 2² = 2545001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84819 + ... + 84848.

It is an arithmetic number, because the mean of its divisors is an integer number (509004).

2^2545005 is an apocalyptic number.

It is an amenable number.

2545005 is a deficient number, since it is larger than the sum of its proper divisors (1527027).

2545005 is a wasteful number, since it uses less digits than its factorization.

2545005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169675.

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 2545005 is about 1595.3071804515. The cubic root of 2545005 is about 136.5304578546.

The spelling of 2545005 in words is "two million, five hundred forty-five thousand, five".