55011150 has 180 divisors, whose sum is σ = 165824208. Its totient is φ = 13512960.

The previous prime is 55011127. The next prime is 55011157. The reversal of 55011150 is 5111055.

55011150 is a `hidden beast` number, since 550 + 1 + 115 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55011157) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 1170427 + ... + 1170473.

Almost surely, 2^55011150 is an apocalyptic number.

55011150 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 55011150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82912104).

55011150 is an abundant number, since it is smaller than the sum of its proper divisors (110813058).

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

55011150 is a wasteful number, since it uses less digits than its factorization.

55011150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 55011150 is about 7416.9501818470. The cubic root of 55011150 is about 380.3209430791.

The spelling of 55011150 in words is "fifty-five million, eleven thousand, one hundred fifty".