55611010550 has 24 divisors (see below), whose sum is σ = 105388116336. Its totient is φ = 21824697440.

The previous prime is 55611010549. The next prime is 55611010583. The reversal of 55611010550 is 5501011655.

It is a happy number.

It is a super-2 number, since 2×55611010550² (a number of 22 digits) contains 22 as substring.

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, 10489994 + ... + 10495293.

It is an arithmetic number, because the mean of its divisors is an integer number (4391171514).

Almost surely, 2^55611010550 is an apocalyptic number.

55611010550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55611010550 is a deficient number, since it is larger than the sum of its proper divisors (49777105786).

55611010550 is a wasteful number, since it uses less digits than its factorization.

55611010550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20985352 (or 20985347 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 55611010550 in words is "fifty-five billion, six hundred eleven million, ten thousand, five hundred fifty".