55493291 has 8 divisors (see below), whose sum is σ = 63552000. Its totient is φ = 47467368.

The previous prime is 55493267. The next prime is 55493297. The reversal of 55493291 is 19239455.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55493291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55493297) 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, 4451 + ... + 11436.

It is an arithmetic number, because the mean of its divisors is an integer number (7944000).

Almost surely, 2^55493291 is an apocalyptic number.

55493291 is a deficient number, since it is larger than the sum of its proper divisors (8058709).

55493291 is a wasteful number, since it uses less digits than its factorization.

55493291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16393.

The product of its digits is 48600, while the sum is 38.

The square root of 55493291 is about 7449.3819206697. The cubic root of 55493291 is about 381.4288106492.

The spelling of 55493291 in words is "fifty-five million, four hundred ninety-three thousand, two hundred ninety-one".