55120727115 has 24 divisors (see below), whose sum is σ = 95687626320. Its totient is φ = 29353095744.

The previous prime is 55120727113. The next prime is 55120727147. The reversal of 55120727115 is 51172702155.

55120727115 is a `hidden beast` number, since 5 + 512 + 0 + 7 + 27 + 115 = 666.

It is not a de Polignac number, because 55120727115 - 2¹ = 55120727113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55120727115.

It is not an unprimeable number, because it can be changed into a prime (55120727113) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 899712 + ... + 959021.

It is an arithmetic number, because the mean of its divisors is an integer number (3986984430).

Almost surely, 2^55120727115 is an apocalyptic number.

55120727115 is a deficient number, since it is larger than the sum of its proper divisors (40566899205).

55120727115 is a wasteful number, since it uses less digits than its factorization.

55120727115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859403 (or 1859400 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 36.

The spelling of 55120727115 in words is "fifty-five billion, one hundred twenty million, seven hundred twenty-seven thousand, one hundred fifteen".