55183650 has 96 divisors (see below), whose sum is σ = 143734848. Its totient is φ = 13996800.

The previous prime is 55183643. The next prime is 55183669. The reversal of 55183650 is 5638155.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 338469 + ... + 338631.

It is an arithmetic number, because the mean of its divisors is an integer number (1497238).

Almost surely, 2^55183650 is an apocalyptic number.

55183650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55183650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71867424).

55183650 is an abundant number, since it is smaller than the sum of its proper divisors (88551198).

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

55183650 is a wasteful number, since it uses less digits than its factorization.

55183650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 55183650 is about 7428.5698489009. The cubic root of 55183650 is about 380.7180559575.

The spelling of 55183650 in words is "fifty-five million, one hundred eighty-three thousand, six hundred fifty".