2545785 has 48 divisors (see below), whose sum is σ = 4979520. Its totient is φ = 1192320.

The previous prime is 2545783. The next prime is 2545811. The reversal of 2545785 is 5875452.

It is a happy number.

It is not a de Polignac number, because 2545785 - 2¹ = 2545783 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545783) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18246 + ... + 18384.

It is an arithmetic number, because the mean of its divisors is an integer number (103740).

2^2545785 is an apocalyptic number.

It is an amenable number.

2545785 is a deficient number, since it is larger than the sum of its proper divisors (2433735).

2545785 is a wasteful number, since it uses less digits than its factorization.

2545785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 195 counting only the distinct ones).

The product of its digits is 56000, while the sum is 36.

The square root of 2545785 is about 1595.5516287479. The cubic root of 2545785 is about 136.5444045043.

The spelling of 2545785 in words is "two million, five hundred forty-five thousand, seven hundred eighty-five".