56271291 has 4 divisors (see below), whose sum is σ = 75028392. Its totient is φ = 37514192.

The previous prime is 56271283. The next prime is 56271301. The reversal of 56271291 is 19217265.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56271291 - 2³ = 56271283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56271211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9378546 + ... + 9378551.

It is an arithmetic number, because the mean of its divisors is an integer number (18757098).

Almost surely, 2^56271291 is an apocalyptic number.

56271291 is a deficient number, since it is larger than the sum of its proper divisors (18757101).

56271291 is a wasteful number, since it uses less digits than its factorization.

56271291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18757100.

The product of its digits is 7560, while the sum is 33.

The square root of 56271291 is about 7501.4192657123. The cubic root of 56271291 is about 383.2030523036.

The spelling of 56271291 in words is "fifty-six million, two hundred seventy-one thousand, two hundred ninety-one".