55765636 has 6 divisors (see below), whose sum is σ = 97589870. Its totient is φ = 27882816.

The previous prime is 55765609. The next prime is 55765667. The reversal of 55765636 is 63656755.

It can be written as a sum of positive squares in only one way, i.e., 39765636 + 16000000 = 6306^2 + 4000^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55765592 and 55765601.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6970701 + ... + 6970708.

Almost surely, 2^55765636 is an apocalyptic number.

It is an amenable number.

55765636 is a deficient number, since it is larger than the sum of its proper divisors (41824234).

55765636 is a wasteful number, since it uses less digits than its factorization.

55765636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13941413 (or 13941411 counting only the distinct ones).

The product of its digits is 567000, while the sum is 43.

The square root of 55765636 is about 7467.6392521332. The cubic root of 55765636 is about 382.0517733615.

It can be divided in two parts, 557656 and 36, that multiplied together give a triangular number (20075616 = T₆₃₃₆).

The spelling of 55765636 in words is "fifty-five million, seven hundred sixty-five thousand, six hundred thirty-six".