55279586 has 4 divisors (see below), whose sum is σ = 82919382. Its totient is φ = 27639792.

The previous prime is 55279561. The next prime is 55279619. The reversal of 55279586 is 68597255.

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., 55279225 + 361 = 7435^2 + 19^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55279586.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13819895 + ... + 13819898.

Almost surely, 2^55279586 is an apocalyptic number.

55279586 is a deficient number, since it is larger than the sum of its proper divisors (27639796).

55279586 is a wasteful number, since it uses less digits than its factorization.

55279586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27639795.

The product of its digits is 756000, while the sum is 47.

The square root of 55279586 is about 7435.0242770283. The cubic root of 55279586 is about 380.9385525600.

The spelling of 55279586 in words is "fifty-five million, two hundred seventy-nine thousand, five hundred eighty-six".