726650055 has 64 divisors (see below), whose sum is σ = 1317513600. Its totient is φ = 379929600.

The previous prime is 726650051. The next prime is 726650081. The reversal of 726650055 is 550056627.

It is not a de Polignac number, because 726650055 - 2² = 726650051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726650051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1867801 + ... + 1868189.

It is an arithmetic number, because the mean of its divisors is an integer number (20586150).

Almost surely, 2^726650055 is an apocalyptic number.

726650055 is a deficient number, since it is larger than the sum of its proper divisors (590863545).

726650055 is a wasteful number, since it uses less digits than its factorization.

726650055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 726650055 is about 26956.4473734949. The cubic root of 726650055 is about 899.0319034724.

The spelling of 726650055 in words is "seven hundred twenty-six million, six hundred fifty thousand, fifty-five".