55289686 has 8 divisors (see below), whose sum is σ = 83218464. Its totient is φ = 27550200.

The previous prime is 55289683. The next prime is 55289687. The reversal of 55289686 is 68698255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55289681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46590 + ... + 47761.

It is an arithmetic number, because the mean of its divisors is an integer number (10402308).

Almost surely, 2^55289686 is an apocalyptic number.

55289686 is a deficient number, since it is larger than the sum of its proper divisors (27928778).

55289686 is a wasteful number, since it uses less digits than its factorization.

55289686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94646.

The product of its digits is 1036800, while the sum is 49.

The square root of 55289686 is about 7435.7034636946. The cubic root of 55289686 is about 380.9617512690.

The spelling of 55289686 in words is "fifty-five million, two hundred eighty-nine thousand, six hundred eighty-six".