55386291 has 8 divisors (see below), whose sum is σ = 74004480. Its totient is φ = 36846152.

The previous prime is 55386281. The next prime is 55386343. The reversal of 55386291 is 19268355.

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 55386291 - 2¹¹ = 55384243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55386211) 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, 17835 + ... + 20708.

It is an arithmetic number, because the mean of its divisors is an integer number (9250560).

Almost surely, 2^55386291 is an apocalyptic number.

55386291 is a deficient number, since it is larger than the sum of its proper divisors (18618189).

55386291 is a wasteful number, since it uses less digits than its factorization.

55386291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39025.

The product of its digits is 64800, while the sum is 39.

The square root of 55386291 is about 7442.1966515270. The cubic root of 55386291 is about 381.1835008624.

The spelling of 55386291 in words is "fifty-five million, three hundred eighty-six thousand, two hundred ninety-one".