56328737 has 2 divisors, whose sum is σ = 56328738. Its totient is φ = 56328736.

The previous prime is 56328731. The next prime is 56328751. The reversal of 56328737 is 73782365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39551521 + 16777216 = 6289^2 + 4096^2 .

It is a cyclic number.

It is not a de Polignac number, because 56328737 - 2⁴ = 56328721 is a prime.

It is a super-2 number, since 2×56328737² = 6345853224030338, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56328694 and 56328703.

It is not a weakly prime, because it can be changed into another prime (56328731) 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 as a sum of consecutive naturals, namely, 28164368 + 28164369.

It is an arithmetic number, because the mean of its divisors is an integer number (28164369).

Almost surely, 2^56328737 is an apocalyptic number.

It is an amenable number.

56328737 is a deficient number, since it is larger than the sum of its proper divisors (1).

56328737 is an equidigital number, since it uses as much as digits as its factorization.

56328737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 56328737 is about 7505.2472977244. The cubic root of 56328737 is about 383.3334088637. Note that the first 3 decimals are identical.

The spelling of 56328737 in words is "fifty-six million, three hundred twenty-eight thousand, seven hundred thirty-seven".