53553191 has 8 divisors (see below), whose sum is σ = 56467200. Its totient is φ = 50648760.

The previous prime is 53553187. The next prime is 53553197. The reversal of 53553191 is 19135535.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53553191 - 2² = 53553187 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 (53553197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11090 + ... + 15168.

It is an arithmetic number, because the mean of its divisors is an integer number (7058400).

Almost surely, 2^53553191 is an apocalyptic number.

53553191 is a deficient number, since it is larger than the sum of its proper divisors (2914009).

53553191 is a wasteful number, since it uses less digits than its factorization.

53553191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4789.

The product of its digits is 10125, while the sum is 32.

The square root of 53553191 is about 7318.0045777521. The cubic root of 53553191 is about 376.9309374016.

The spelling of 53553191 in words is "fifty-three million, five hundred fifty-three thousand, one hundred ninety-one".