672730055 has 16 divisors (see below), whose sum is σ = 869531520. Its totient is φ = 497998368.

The previous prime is 672729997. The next prime is 672730057. The reversal of 672730055 is 550037276.

It is a cyclic number.

It is not a de Polignac number, because 672730055 - 2⁶ = 672729991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 672729997 and 672730024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672730057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78257 + ... + 86426.

It is an arithmetic number, because the mean of its divisors is an integer number (54345720).

Almost surely, 2^672730055 is an apocalyptic number.

672730055 is a deficient number, since it is larger than the sum of its proper divisors (196801465).

672730055 is a wasteful number, since it uses less digits than its factorization.

672730055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164750.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 672730055 is about 25937.0402127922. The cubic root of 672730055 is about 876.2209046351.

The spelling of 672730055 in words is "six hundred seventy-two million, seven hundred thirty thousand, fifty-five".