16553250 has 96 divisors (see below), whose sum is σ = 51202944. Its totient is φ = 3780000.

The previous prime is 16553249. The next prime is 16553279. The reversal of 16553250 is 5235561.

16553250 is a `hidden beast` number, since 1 + 655 + 3 + 2 + 5 + 0 = 666.

16553250 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15225 + ... + 16275.

It is an arithmetic number, because the mean of its divisors is an integer number (533364).

Almost surely, 2^16553250 is an apocalyptic number.

16553250 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 16553250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25601472).

16553250 is an abundant number, since it is smaller than the sum of its proper divisors (34649694).

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

16553250 is a wasteful number, since it uses less digits than its factorization.

16553250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 16553250 is about 4068.5685443409. The cubic root of 16553250 is about 254.8557430901.

The spelling of 16553250 in words is "sixteen million, five hundred fifty-three thousand, two hundred fifty".