189550 has 24 divisors (see below), whose sum is σ = 374976. Its totient is φ = 71040.

The previous prime is 189547. The next prime is 189559. The reversal of 189550 is 55981.

189550 is nontrivially palindromic in base 4.

189550 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 739 + ... + 961.

It is an arithmetic number, because the mean of its divisors is an integer number (15624).

2¹⁸⁹⁵⁵⁰ is an apocalyptic number.

189550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189550 is a deficient number, since it is larger than the sum of its proper divisors (185426).

189550 is a wasteful number, since it uses less digits than its factorization.

189550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 189550 is about 435.3734029543. The cubic root of 189550 is about 57.4435488816.

The spelling of 189550 in words is "one hundred eighty-nine thousand, five hundred fifty".