2545895 has 16 divisors (see below), whose sum is σ = 3417120. Its totient is φ = 1804800.

The previous prime is 2545891. The next prime is 2545919. The reversal of 2545895 is 5985452.

It is not a de Polignac number, because 2545895 - 2² = 2545891 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545891) 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 15 ways as a sum of consecutive naturals, for example, 1691 + ... + 2819.

It is an arithmetic number, because the mean of its divisors is an integer number (213570).

2^2545895 is an apocalyptic number.

2545895 is a deficient number, since it is larger than the sum of its proper divisors (871225).

2545895 is a wasteful number, since it uses less digits than its factorization.

2545895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186.

The product of its digits is 72000, while the sum is 38.

The square root of 2545895 is about 1595.5860992124. The cubic root of 2545895 is about 136.5463711103.

The spelling of 2545895 in words is "two million, five hundred forty-five thousand, eight hundred ninety-five".