7907920055 has 16 divisors (see below), whose sum is σ = 10846778880. Its totient is φ = 5421758112.

The previous prime is 7907920003. The next prime is 7907920057. The reversal of 7907920055 is 5500297097.

It is a cyclic number.

It is not a de Polignac number, because 7907920055 - 2¹⁰ = 7907919031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7907919988 and 7907920015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7907920057) 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 15 ways as a sum of consecutive naturals, for example, 304886 + ... + 329804.

It is an arithmetic number, because the mean of its divisors is an integer number (677923680).

Almost surely, 2^7907920055 is an apocalyptic number.

7907920055 is a deficient number, since it is larger than the sum of its proper divisors (2938858825).

7907920055 is a wasteful number, since it uses less digits than its factorization.

7907920055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33998.

The product of its (nonzero) digits is 198450, while the sum is 44.

The square root of 7907920055 is about 88926.4868023020. The cubic root of 7907920055 is about 1992.2970415539.

The spelling of 7907920055 in words is "seven billion, nine hundred seven million, nine hundred twenty thousand, fifty-five".