56693837 has 4 divisors (see below), whose sum is σ = 56725980. Its totient is φ = 56661696.

The previous prime is 56693831. The next prime is 56693839. The reversal of 56693837 is 73839665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73839665 = 5 ⋅14767933.

It can be written as a sum of positive squares in 2 ways, for example, as 20921476 + 35772361 = 4574^2 + 5981^2 .

It is a cyclic number.

It is not a de Polignac number, because 56693837 - 2⁴ = 56693821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56693791 and 56693800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56693831) 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, 13262 + ... + 17007.

It is an arithmetic number, because the mean of its divisors is an integer number (14181495).

Almost surely, 2^56693837 is an apocalyptic number.

It is an amenable number.

56693837 is a deficient number, since it is larger than the sum of its proper divisors (32143).

56693837 is a wasteful number, since it uses less digits than its factorization.

56693837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32142.

The product of its digits is 816480, while the sum is 47.

The square root of 56693837 is about 7529.5309946902. The cubic root of 56693837 is about 384.1598297513.

The spelling of 56693837 in words is "fifty-six million, six hundred ninety-three thousand, eight hundred thirty-seven".