53956191 has 8 divisors (see below), whose sum is σ = 72091264. Its totient is φ = 35895960.

The previous prime is 53956187. The next prime is 53956193. The reversal of 53956191 is 19165935.

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

It is not a de Polignac number, because 53956191 - 2² = 53956187 is a prime.

It is a super-2 number, since 2×53956191² = 5822541094456962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53956193) 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 7 ways as a sum of consecutive naturals, for example, 17005 + ... + 19926.

It is an arithmetic number, because the mean of its divisors is an integer number (9011408).

Almost surely, 2^53956191 is an apocalyptic number.

53956191 is a deficient number, since it is larger than the sum of its proper divisors (18135073).

53956191 is a wasteful number, since it uses less digits than its factorization.

53956191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37421.

The product of its digits is 36450, while the sum is 39.

The square root of 53956191 is about 7345.4877986421. The cubic root of 53956191 is about 377.8740727196.

The spelling of 53956191 in words is "fifty-three million, nine hundred fifty-six thousand, one hundred ninety-one".