2545747 has 4 divisors (see below), whose sum is σ = 2548960. Its totient is φ = 2542536.

The previous prime is 2545727. The next prime is 2545757. The reversal of 2545747 is 7475452.

2545747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2545747 - 2⁷ = 2545619 is a prime.

It is a Duffinian number.

2545747 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2545727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529 + ... + 2317.

It is an arithmetic number, because the mean of its divisors is an integer number (637240).

2^2545747 is an apocalyptic number.

2545747 is a deficient number, since it is larger than the sum of its proper divisors (3213).

2545747 is a wasteful number, since it uses less digits than its factorization.

2545747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212.

The product of its digits is 39200, while the sum is 34.

The square root of 2545747 is about 1595.5397205961. The cubic root of 2545747 is about 136.5437251182.

The spelling of 2545747 in words is "two million, five hundred forty-five thousand, seven hundred forty-seven".