55000291 has 8 divisors (see below), whose sum is σ = 57496320. Its totient is φ = 52513032.

The previous prime is 55000277. The next prime is 55000301. The reversal of 55000291 is 19200055.

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 55000291 - 2⁵ = 55000259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55000091) 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, 12930 + ... + 16648.

It is an arithmetic number, because the mean of its divisors is an integer number (7187040).

Almost surely, 2^55000291 is an apocalyptic number.

55000291 is a deficient number, since it is larger than the sum of its proper divisors (2496029).

55000291 is a wasteful number, since it uses less digits than its factorization.

55000291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 55000291 is about 7416.2181062857. The cubic root of 55000291 is about 380.2959167775.

The spelling of 55000291 in words is "fifty-five million, two hundred ninety-one", and thus it is an aban number.