55002150 has 144 divisors (see below), whose sum is σ = 177964800. Its totient is φ = 11897280.

The previous prime is 55002149. The next prime is 55002179. The reversal of 55002150 is 5120055.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 59391 + ... + 60309.

Almost surely, 2^55002150 is an apocalyptic number.

55002150 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 55002150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88982400).

55002150 is an abundant number, since it is smaller than the sum of its proper divisors (122962650).

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

55002150 is a wasteful number, since it uses less digits than its factorization.

55002150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 55002150 is about 7416.3434386495. The cubic root of 55002150 is about 380.3002013739.

The spelling of 55002150 in words is "fifty-five million, two thousand, one hundred fifty".