55311150 has 48 divisors (see below), whose sum is σ = 137634048. Its totient is φ = 14700000.

The previous prime is 55311121. The next prime is 55311163. The reversal of 55311150 is 5111355.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73275 + ... + 74025.

It is an arithmetic number, because the mean of its divisors is an integer number (2867376).

Almost surely, 2^55311150 is an apocalyptic number.

55311150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55311150 is an abundant number, since it is smaller than the sum of its proper divisors (82322898).

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

55311150 is a wasteful number, since it uses less digits than its factorization.

55311150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 55311150 is about 7437.1466302608. The cubic root of 55311150 is about 381.0110425909.

The spelling of 55311150 in words is "fifty-five million, three hundred eleven thousand, one hundred fifty".