2545306 has 4 divisors (see below), whose sum is σ = 3817962. Its totient is φ = 1272652.

The previous prime is 2545271. The next prime is 2545307. The reversal of 2545306 is 6035452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1625625 + 919681 = 1275^2 + 959^2 .

It is not an unprimeable number, because it can be changed into a prime (2545307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636325 + ... + 636328.

2^2545306 is an apocalyptic number.

2545306 is a deficient number, since it is larger than the sum of its proper divisors (1272656).

2545306 is a wasteful number, since it uses less digits than its factorization.

2545306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272655.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2545306 is about 1595.4015168603. The cubic root of 2545306 is about 136.5358401686.

The spelling of 2545306 in words is "two million, five hundred forty-five thousand, three hundred six".