163532250 has 128 divisors (see below), whose sum is σ = 518469120. Its totient is φ = 37368000.

The previous prime is 163532227. The next prime is 163532251. The reversal of 163532250 is 52235361.

163532250 is a `hidden beast` number, since 1 + 635 + 3 + 2 + 25 + 0 = 666.

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

It is a Curzon number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (163532251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45520 + ... + 48980.

It is an arithmetic number, because the mean of its divisors is an integer number (4050540).

Almost surely, 2^163532250 is an apocalyptic number.

163532250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 163532250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259234560).

163532250 is an abundant number, since it is smaller than the sum of its proper divisors (354936870).

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

163532250 is a wasteful number, since it uses less digits than its factorization.

163532250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494 (or 3478 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 163532250 is about 12787.9728651573. The cubic root of 163532250 is about 546.8494807140.

The spelling of 163532250 in words is "one hundred sixty-three million, five hundred thirty-two thousand, two hundred fifty".