53913191 has 8 divisors (see below), whose sum is σ = 54493824. Its totient is φ = 53335800.

The previous prime is 53913179. The next prime is 53913193. The reversal of 53913191 is 19131935.

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 53913191 - 2¹⁰ = 53912167 is a prime.

It is a super-3 number, since 3×53913191³ (a number of 24 digits) contains 333 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 (53913193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45776 + ... + 46938.

It is an arithmetic number, because the mean of its divisors is an integer number (6811728).

Almost surely, 2^53913191 is an apocalyptic number.

53913191 is a deficient number, since it is larger than the sum of its proper divisors (580633).

53913191 is a wasteful number, since it uses less digits than its factorization.

53913191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621.

The product of its digits is 3645, while the sum is 32.

The square root of 53913191 is about 7342.5602483058. The cubic root of 53913191 is about 377.7736646963.

The spelling of 53913191 in words is "fifty-three million, nine hundred thirteen thousand, one hundred ninety-one".