725716543 has 2 divisors, whose sum is σ = 725716544. Its totient is φ = 725716542.

The previous prime is 725716529. The next prime is 725716639. The reversal of 725716543 is 345617527.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725716543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 725716496 and 725716505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725716843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362858271 + 362858272.

It is an arithmetic number, because the mean of its divisors is an integer number (362858272).

Almost surely, 2^725716543 is an apocalyptic number.

725716543 is a deficient number, since it is larger than the sum of its proper divisors (1).

725716543 is an equidigital number, since it uses as much as digits as its factorization.

725716543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176400, while the sum is 40.

The square root of 725716543 is about 26939.1266191018. The cubic root of 725716543 is about 898.6467493838.

The spelling of 725716543 in words is "seven hundred twenty-five million, seven hundred sixteen thousand, five hundred forty-three".