55154886850 has 48 divisors (see below), whose sum is σ = 121286433600. Its totient is φ = 18258166080.

The previous prime is 55154886827. The next prime is 55154886907. The reversal of 55154886850 is 5868845155.

It is a junction number, because it is equal to n+sod(n) for n = 55154886791 and 55154886800.

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 23 ways as a sum of consecutive naturals, for example, 2706840 + ... + 2727139.

It is an arithmetic number, because the mean of its divisors is an integer number (2526800700).

Almost surely, 2^55154886850 is an apocalyptic number.

55154886850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55154886850 is an abundant number, since it is smaller than the sum of its proper divisors (66131546750).

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

55154886850 is a wasteful number, since it uses less digits than its factorization.

55154886850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5434027 (or 5434022 counting only the distinct ones).

The product of its (nonzero) digits is 7680000, while the sum is 55.

The spelling of 55154886850 in words is "fifty-five billion, one hundred fifty-four million, eight hundred eighty-six thousand, eight hundred fifty".