55215135163 has 16 divisors (see below), whose sum is σ = 55971512640. Its totient is φ = 54464881536.

The previous prime is 55215135137. The next prime is 55215135167. The reversal of 55215135163 is 36153151255.

It is a cyclic number.

It is not a de Polignac number, because 55215135163 - 2⁹ = 55215134651 is a prime.

It is a super-2 number, since 2×55215135163² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55215135167) 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, 27078498 + ... + 27080536.

It is an arithmetic number, because the mean of its divisors is an integer number (3498219540).

Almost surely, 2^55215135163 is an apocalyptic number.

55215135163 is a deficient number, since it is larger than the sum of its proper divisors (756377477).

55215135163 is a wasteful number, since it uses less digits than its factorization.

55215135163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366.

The product of its digits is 67500, while the sum is 37.

The spelling of 55215135163 in words is "fifty-five billion, two hundred fifteen million, one hundred thirty-five thousand, one hundred sixty-three".