56973311 has 4 divisors (see below), whose sum is σ = 57775824. Its totient is φ = 56170800.

The previous prime is 56973289. The next prime is 56973331. The reversal of 56973311 is 11337965.

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 56973311 - 2⁶ = 56973247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56973331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401150 + ... + 401291.

It is an arithmetic number, because the mean of its divisors is an integer number (14443956).

Almost surely, 2^56973311 is an apocalyptic number.

56973311 is a deficient number, since it is larger than the sum of its proper divisors (802513).

56973311 is an equidigital number, since it uses as much as digits as its factorization.

56973311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802512.

The product of its digits is 17010, while the sum is 35.

The square root of 56973311 is about 7548.0667061175. The cubic root of 56973311 is about 384.7900378751.

The spelling of 56973311 in words is "fifty-six million, nine hundred seventy-three thousand, three hundred eleven".