56820337 has 4 divisors (see below), whose sum is σ = 64937536. Its totient is φ = 48703140.

The previous prime is 56820331. The next prime is 56820347. The reversal of 56820337 is 73302865.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56820337 - 2¹⁵ = 56787569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56820331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4058589 + ... + 4058602.

It is an arithmetic number, because the mean of its divisors is an integer number (16234384).

Almost surely, 2^56820337 is an apocalyptic number.

It is an amenable number.

56820337 is a deficient number, since it is larger than the sum of its proper divisors (8117199).

56820337 is an equidigital number, since it uses as much as digits as its factorization.

56820337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8117198.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 56820337 is about 7537.9265716774. The cubic root of 56820337 is about 384.4453406158.

The spelling of 56820337 in words is "fifty-six million, eight hundred twenty thousand, three hundred thirty-seven".