2545450 has 12 divisors (see below), whose sum is σ = 4734630. Its totient is φ = 1018160.

The previous prime is 2545447. The next prime is 2545451. The reversal of 2545450 is 545452.

It can be written as a sum of positive squares in 3 ways, for example, as 1610361 + 935089 = 1269^2 + 967^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2545451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25405 + ... + 25504.

2^2545450 is an apocalyptic number.

2545450 is a deficient number, since it is larger than the sum of its proper divisors (2189180).

2545450 is a wasteful number, since it uses less digits than its factorization.

2545450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50921 (or 50916 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 2545450 is about 1595.4466459271. The cubic root of 2545450 is about 136.5384149461.

The spelling of 2545450 in words is "two million, five hundred forty-five thousand, four hundred fifty".