2546539 has 2 divisors, whose sum is σ = 2546540. Its totient is φ = 2546538.

The previous prime is 2546521. The next prime is 2546543. The reversal of 2546539 is 9356452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2546539 is a prime.

2546539 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2546569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1273269 + 1273270.

It is an arithmetic number, because the mean of its divisors is an integer number (1273270).

2^2546539 is an apocalyptic number.

2546539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2546539 is an equidigital number, since it uses as much as digits as its factorization.

2546539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 34.

The square root of 2546539 is about 1595.7878931738. The cubic root of 2546539 is about 136.5578835581.

It can be divided in two parts, 25 and 46539, that added together give a palindrome (46564).

The spelling of 2546539 in words is "two million, five hundred forty-six thousand, five hundred thirty-nine".