199373550 has 48 divisors (see below), whose sum is σ = 511507440. Its totient is φ = 51331840.

The previous prime is 199373549. The next prime is 199373563. The reversal of 199373550 is 55373991.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18567 + ... + 27266.

It is an arithmetic number, because the mean of its divisors is an integer number (10656405).

Almost surely, 2^199373550 is an apocalyptic number.

199373550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199373550 is an abundant number, since it is smaller than the sum of its proper divisors (312133890).

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

199373550 is a wasteful number, since it uses less digits than its factorization.

199373550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45877 (or 45872 counting only the distinct ones).

The product of its (nonzero) digits is 127575, while the sum is 42.

The square root of 199373550 is about 14119.9699008178. The cubic root of 199373550 is about 584.1923253933.

The spelling of 199373550 in words is "one hundred ninety-nine million, three hundred seventy-three thousand, five hundred fifty".