726554531 has 8 divisors (see below), whose sum is σ = 743911344. Its totient is φ = 709218720.

The previous prime is 726554519. The next prime is 726554537. The reversal of 726554531 is 135455627.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 726554531 - 2⁶ = 726554467 is a prime.

It is a super-2 number, since 2×726554531² = 1055762973033259922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726554537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81641 + ... + 90101.

It is an arithmetic number, because the mean of its divisors is an integer number (92988918).

Almost surely, 2^726554531 is an apocalyptic number.

726554531 is a deficient number, since it is larger than the sum of its proper divisors (17356813).

726554531 is a wasteful number, since it uses less digits than its factorization.

726554531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10501.

The product of its digits is 126000, while the sum is 38.

The square root of 726554531 is about 26954.6754942440. The cubic root of 726554531 is about 898.9925067521.

The spelling of 726554531 in words is "seven hundred twenty-six million, five hundred fifty-four thousand, five hundred thirty-one".