55680386 has 4 divisors (see below), whose sum is σ = 83520582. Its totient is φ = 27840192.

The previous prime is 55680379. The next prime is 55680409. The reversal of 55680386 is 68308655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 47183161 + 8497225 = 6869^2 + 2915^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13920095 + ... + 13920098.

Almost surely, 2^55680386 is an apocalyptic number.

55680386 is a deficient number, since it is larger than the sum of its proper divisors (27840196).

55680386 is a wasteful number, since it uses less digits than its factorization.

55680386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27840195.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 55680386 is about 7461.9291071411. The cubic root of 55680386 is about 381.8569907745.

The spelling of 55680386 in words is "fifty-five million, six hundred eighty thousand, three hundred eighty-six".