726712055 has 4 divisors (see below), whose sum is σ = 872054472. Its totient is φ = 581369640.

The previous prime is 726712043. The next prime is 726712081. The reversal of 726712055 is 550217627.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 726712055 - 2¹⁶ = 726646519 is a prime.

It is a super-2 number, since 2×726712055² = 1056220821764646050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72671201 + ... + 72671210.

It is an arithmetic number, because the mean of its divisors is an integer number (218013618).

Almost surely, 2^726712055 is an apocalyptic number.

726712055 is a deficient number, since it is larger than the sum of its proper divisors (145342417).

726712055 is a wasteful number, since it uses less digits than its factorization.

726712055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145342416.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 726712055 is about 26957.5973521380. The cubic root of 726712055 is about 899.0574721270.

The spelling of 726712055 in words is "seven hundred twenty-six million, seven hundred twelve thousand, fifty-five".