56873837 has 2 divisors, whose sum is σ = 56873838. Its totient is φ = 56873836.

The previous prime is 56873813. The next prime is 56873867. The reversal of 56873837 is 73837865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31933801 + 24940036 = 5651^2 + 4994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56873837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56873791 and 56873800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56873867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28436918 + 28436919.

It is an arithmetic number, because the mean of its divisors is an integer number (28436919).

Almost surely, 2^56873837 is an apocalyptic number.

It is an amenable number.

56873837 is a deficient number, since it is larger than the sum of its proper divisors (1).

56873837 is an equidigital number, since it uses as much as digits as its factorization.

56873837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The square root of 56873837 is about 7541.4744579558. The cubic root of 56873837 is about 384.5659627666.

The spelling of 56873837 in words is "fifty-six million, eight hundred seventy-three thousand, eight hundred thirty-seven".