55726873213 has 64 divisors (see below), whose sum is σ = 68018227200. Its totient is φ = 45060744960.

The previous prime is 55726873157. The next prime is 55726873217. The reversal of 55726873213 is 31237862755.

It is not a de Polignac number, because 55726873213 - 2¹³ = 55726865021 is a prime.

It is a super-3 number, since 3×55726873213³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55726873217) 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, 78598903 + ... + 78599611.

It is an arithmetic number, because the mean of its divisors is an integer number (1062784800).

Almost surely, 2^55726873213 is an apocalyptic number.

It is an amenable number.

55726873213 is a deficient number, since it is larger than the sum of its proper divisors (12291353987).

55726873213 is a wasteful number, since it uses less digits than its factorization.

55726873213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042.

The product of its digits is 2116800, while the sum is 49.

The spelling of 55726873213 in words is "fifty-five billion, seven hundred twenty-six million, eight hundred seventy-three thousand, two hundred thirteen".