55366258 has 4 divisors (see below), whose sum is σ = 83049390. Its totient is φ = 27683128.

The previous prime is 55366253. The next prime is 55366261. The reversal of 55366258 is 85266355.

55366258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85266355 = 5 ⋅17053271.

It can be written as a sum of positive squares in only one way, i.e., 47430769 + 7935489 = 6887^2 + 2817^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 55366258.

It is not an unprimeable number, because it can be changed into a prime (55366253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13841563 + ... + 13841566.

Almost surely, 2^55366258 is an apocalyptic number.

55366258 is a deficient number, since it is larger than the sum of its proper divisors (27683132).

55366258 is a wasteful number, since it uses less digits than its factorization.

55366258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27683131.

The product of its digits is 216000, while the sum is 40.

The square root of 55366258 is about 7440.8506234167. The cubic root of 55366258 is about 381.1375378044.

The spelling of 55366258 in words is "fifty-five million, three hundred sixty-six thousand, two hundred fifty-eight".