191252050 has 24 divisors (see below), whose sum is σ = 388068912. Its totient is φ = 69546000.

The previous prime is 191252029. The next prime is 191252059. The reversal of 191252050 is 50252191.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (191252059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173316 + ... + 174415.

It is an arithmetic number, because the mean of its divisors is an integer number (16169538).

Almost surely, 2^191252050 is an apocalyptic number.

191252050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

191252050 is an abundant number, since it is smaller than the sum of its proper divisors (196816862).

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

191252050 is a wasteful number, since it uses less digits than its factorization.

191252050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347754 (or 347749 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 191252050 is about 13829.3908036471. The cubic root of 191252050 is about 576.1497348150.

The spelling of 191252050 in words is "one hundred ninety-one million, two hundred fifty-two thousand, fifty".