55529915127 has 4 divisors (see below), whose sum is σ = 74039886840. Its totient is φ = 37019943416.

The previous prime is 55529915069. The next prime is 55529915141. The reversal of 55529915127 is 72151992555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55529915127 - 2⁸ = 55529914871 is a prime.

It is a super-2 number, since 2×55529915127² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55529915127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55529915027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9254985852 + ... + 9254985857.

It is an arithmetic number, because the mean of its divisors is an integer number (18509971710).

Almost surely, 2^55529915127 is an apocalyptic number.

55529915127 is a deficient number, since it is larger than the sum of its proper divisors (18509971713).

55529915127 is a wasteful number, since it uses less digits than its factorization.

55529915127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18509971712.

The product of its digits is 1417500, while the sum is 51.

The spelling of 55529915127 in words is "fifty-five billion, five hundred twenty-nine million, nine hundred fifteen thousand, one hundred twenty-seven".