190885550 has 24 divisors (see below), whose sum is σ = 356097000. Its totient is φ = 76128480.

The previous prime is 190885549. The next prime is 190885561. The reversal of 190885550 is 55588091.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 190885498 and 190885507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11981 + ... + 22919.

It is an arithmetic number, because the mean of its divisors is an integer number (14837375).

Almost surely, 2^190885550 is an apocalyptic number.

190885550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190885550 is a deficient number, since it is larger than the sum of its proper divisors (165211450).

190885550 is a wasteful number, since it uses less digits than its factorization.

190885550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11300 (or 11295 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 41.

The square root of 190885550 is about 13816.1336849352. The cubic root of 190885550 is about 575.7814705198.

The spelling of 190885550 in words is "one hundred ninety million, eight hundred eighty-five thousand, five hundred fifty".