55712 has 12 divisors (see below), whose sum is σ = 109746. Its totient is φ = 27840.

The previous prime is 55711. The next prime is 55717. The reversal of 55712 is 21755.

It can be written as a sum of positive squares in only one way, i.e., 55696 + 16 = 236^2 + 4^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (55711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 839 + ... + 902.

2⁵⁵⁷¹² is an apocalyptic number.

It is an amenable number.

55712 is a deficient number, since it is larger than the sum of its proper divisors (54034).

55712 is a wasteful number, since it uses less digits than its factorization.

55712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751 (or 1743 counting only the distinct ones).

The product of its digits is 350, while the sum is 20.

The square root of 55712 is about 236.0338958709. The cubic root of 55712 is about 38.1929246876.

It can be divided in two parts, 55 and 712, that added together give a palindrome (767).

The spelling of 55712 in words is "fifty-five thousand, seven hundred twelve".