55561611050 has 96 divisors (see below), whose sum is σ = 113576748480. Its totient is φ = 20054822400.

The previous prime is 55561611019. The next prime is 55561611101. The reversal of 55561611050 is 5011616555.

It is a self number, because there is not a number n which added to its sum of digits gives 55561611050.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 67022036 + ... + 67022864.

It is an arithmetic number, because the mean of its divisors is an integer number (1183091130).

Almost surely, 2^55561611050 is an apocalyptic number.

55561611050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55561611050 is an abundant number, since it is smaller than the sum of its proper divisors (58015137430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55561611050 is a wasteful number, since it uses less digits than its factorization.

55561611050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1603 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 55561611050 in words is "fifty-five billion, five hundred sixty-one million, six hundred eleven thousand, fifty".