7155617055 has 64 divisors (see below), whose sum is σ = 12192768000. Its totient is φ = 3575699072.

The previous prime is 7155617039. The next prime is 7155617071. The reversal of 7155617055 is 5507165517.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7155617039) and next prime (7155617071).

It is not a de Polignac number, because 7155617055 - 2⁴ = 7155617039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7155616998 and 7155617016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8528326 + ... + 8529164.

It is an arithmetic number, because the mean of its divisors is an integer number (190512000).

Almost surely, 2^7155617055 is an apocalyptic number.

7155617055 is a deficient number, since it is larger than the sum of its proper divisors (5037150945).

7155617055 is a wasteful number, since it uses less digits than its factorization.

7155617055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348.

The product of its (nonzero) digits is 183750, while the sum is 42.

The square root of 7155617055 is about 84590.8804481902. The cubic root of 7155617055 is about 1927.0028789937.

The spelling of 7155617055 in words is "seven billion, one hundred fifty-five million, six hundred seventeen thousand, fifty-five".