2545493 has 2 divisors, whose sum is σ = 2545494. Its totient is φ = 2545492.

The previous prime is 2545481. The next prime is 2545513. The reversal of 2545493 is 3945452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2486929 + 58564 = 1577^2 + 242^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545493 - 2⁶ = 2545429 is a prime.

It is a super-2 number, since 2×2545493² = 12959069226098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2545453) 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 as a sum of consecutive naturals, namely, 1272746 + 1272747.

It is an arithmetic number, because the mean of its divisors is an integer number (1272747).

2^2545493 is an apocalyptic number.

It is an amenable number.

2545493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545493 is an equidigital number, since it uses as much as digits as its factorization.

2545493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 32.

The square root of 2545493 is about 1595.4601217204. The cubic root of 2545493 is about 136.5391837845.

The spelling of 2545493 in words is "two million, five hundred forty-five thousand, four hundred ninety-three".