55280966 has 8 divisors (see below), whose sum is σ = 89300064. Its totient is φ = 25514280.

The previous prime is 55280947. The next prime is 55280969. The reversal of 55280966 is 66908255.

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 (55280969) 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, 1063070 + ... + 1063121.

It is an arithmetic number, because the mean of its divisors is an integer number (11162508).

Almost surely, 2^55280966 is an apocalyptic number.

55280966 is a deficient number, since it is larger than the sum of its proper divisors (34019098).

55280966 is a wasteful number, since it uses less digits than its factorization.

55280966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126206.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 55280966 is about 7435.1170804500. The cubic root of 55280966 is about 380.9417224513.

It can be divided in two parts, 552 and 80966, that added together give a palindrome (81518).

The spelling of 55280966 in words is "fifty-five million, two hundred eighty thousand, nine hundred sixty-six".