55156011010550 has 24 divisors (see below), whose sum is σ = 102924350477256. Its totient is φ = 21990539888640.

The previous prime is 55156011010523. The next prime is 55156011010621. The reversal of 55156011010550 is 5501011065155.

It is a super-2 number, since 2×55156011010550² (a number of 28 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 55156011010550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1796597387 + ... + 1796628086.

It is an arithmetic number, because the mean of its divisors is an integer number (4288514603219).

Almost surely, 2^{55156011010550} is an apocalyptic number.

55156011010550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55156011010550 is a deficient number, since it is larger than the sum of its proper divisors (47768339466706).

55156011010550 is a wasteful number, since it uses less digits than its factorization.

55156011010550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593225792 (or 3593225787 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 35.

The spelling of 55156011010550 in words is "fifty-five trillion, one hundred fifty-six billion, eleven million, ten thousand, five hundred fifty".