6502543 has 2 divisors, whose sum is σ = 6502544. Its totient is φ = 6502542.

The previous prime is 6502519. The next prime is 6502547. The reversal of 6502543 is 3452056.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6502543 is a prime.

It is equal to p₄₄₄₉₃₁ and since 6502543 and 444931 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6502547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3251271 + 3251272.

It is an arithmetic number, because the mean of its divisors is an integer number (3251272).

Almost surely, 2^6502543 is an apocalyptic number.

6502543 is a deficient number, since it is larger than the sum of its proper divisors (1).

6502543 is an equidigital number, since it uses as much as digits as its factorization.

6502543 is an evil number, because the sum of its binary digits is even.

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

The square root of 6502543 is about 2550.0084313586. The cubic root of 6502543 is about 186.6498925545.

Adding to 6502543 its reverse (3452056), we get a palindrome (9954599).

The spelling of 6502543 in words is "six million, five hundred two thousand, five hundred forty-three".