55357773500 has 24 divisors (see below), whose sum is σ = 120901378416. Its totient is φ = 22143109200.

The previous prime is 55357773487. The next prime is 55357773577. The reversal of 55357773500 is 537775355.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 55357274 + ... + 55358273.

It is an arithmetic number, because the mean of its divisors is an integer number (5037557434).

Almost surely, 2^55357773500 is an apocalyptic number.

55357773500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55357773500 is an abundant number, since it is smaller than the sum of its proper divisors (65543604916).

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

55357773500 is a wasteful number, since it uses less digits than its factorization.

55357773500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110715566 (or 110715554 counting only the distinct ones).

The product of its (nonzero) digits is 1929375, while the sum is 47.

The spelling of 55357773500 in words is "fifty-five billion, three hundred fifty-seven million, seven hundred seventy-three thousand, five hundred".