155250216 has 192 divisors, whose sum is σ = 499262400. Its totient is φ = 44323200.

The previous prime is 155250211. The next prime is 155250217. The reversal of 155250216 is 612052551.

155250216 is a `hidden beast` number, since 155 + 2 + 502 + 1 + 6 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 155250216.

It is not an unprimeable number, because it can be changed into a prime (155250211) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 857646 + ... + 857826.

It is an arithmetic number, because the mean of its divisors is an integer number (2600325).

Almost surely, 2^155250216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155250216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249631200).

155250216 is an abundant number, since it is smaller than the sum of its proper divisors (344012184).

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

155250216 is a wasteful number, since it uses less digits than its factorization.

155250216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 155250216 is about 12459.9444621555. The cubic root of 155250216 is about 537.4574299078.

The spelling of 155250216 in words is "one hundred fifty-five million, two hundred fifty thousand, two hundred sixteen".