725450543 has 4 divisors (see below), whose sum is σ = 731162880. Its totient is φ = 719738208.

The previous prime is 725450519. The next prime is 725450563. The reversal of 725450543 is 345054527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345054527 = 3373 ⋅102299.

It is a cyclic number.

It is not a de Polignac number, because 725450543 - 2⁸ = 725450287 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725450563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2855978 + ... + 2856231.

It is an arithmetic number, because the mean of its divisors is an integer number (182790720).

Almost surely, 2^725450543 is an apocalyptic number.

725450543 is a deficient number, since it is larger than the sum of its proper divisors (5712337).

725450543 is a wasteful number, since it uses less digits than its factorization.

725450543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712336.

The product of its (nonzero) digits is 84000, while the sum is 35.

The square root of 725450543 is about 26934.1891097542. The cubic root of 725450543 is about 898.5369410162.

The spelling of 725450543 in words is "seven hundred twenty-five million, four hundred fifty thousand, five hundred forty-three".