53947199 has 4 divisors (see below), whose sum is σ = 54248760. Its totient is φ = 53645640.

The previous prime is 53947193. The next prime is 53947249. The reversal of 53947199 is 99174935.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53947199 - 2⁴ = 53947183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53947193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150512 + ... + 150869.

It is an arithmetic number, because the mean of its divisors is an integer number (13562190).

Almost surely, 2^53947199 is an apocalyptic number.

53947199 is a deficient number, since it is larger than the sum of its proper divisors (301561).

53947199 is a wasteful number, since it uses less digits than its factorization.

53947199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301560.

The product of its digits is 306180, while the sum is 47.

The square root of 53947199 is about 7344.8756967017. The cubic root of 53947199 is about 377.8530801799.

The spelling of 53947199 in words is "fifty-three million, nine hundred forty-seven thousand, one hundred ninety-nine".