55578682 has 4 divisors (see below), whose sum is σ = 83368026. Its totient is φ = 27789340.

The previous prime is 55578673. The next prime is 55578683. The reversal of 55578682 is 28687555.

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., 47900241 + 7678441 = 6921^2 + 2771^2 .

It is not an unprimeable number, because it can be changed into a prime (55578683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13894669 + ... + 13894672.

Almost surely, 2^55578682 is an apocalyptic number.

55578682 is a deficient number, since it is larger than the sum of its proper divisors (27789344).

55578682 is a wasteful number, since it uses less digits than its factorization.

55578682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27789343.

The product of its digits is 672000, while the sum is 46.

The square root of 55578682 is about 7455.1111326391. Note that the first 4 decimals coincide. The cubic root of 55578682 is about 381.6243531800.

The spelling of 55578682 in words is "fifty-five million, five hundred seventy-eight thousand, six hundred eighty-two".