208052550 has 120 divisors (see below), whose sum is σ = 590917536. Its totient is φ = 54250560.

The previous prime is 208052539. The next prime is 208052557. The reversal of 208052550 is 55250802.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208052557) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 189804 + ... + 190896.

Almost surely, 2^208052550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208052550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295458768).

208052550 is an abundant number, since it is smaller than the sum of its proper divisors (382864986).

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

208052550 is a wasteful number, since it uses less digits than its factorization.

208052550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 208052550 is about 14424.0268302579. The cubic root of 208052550 is about 592.5491066493.

The spelling of 208052550 in words is "two hundred eight million, fifty-two thousand, five hundred fifty".