55643002 has 4 divisors (see below), whose sum is σ = 83464506. Its totient is φ = 27821500.

The previous prime is 55642997. The next prime is 55643017. The reversal of 55643002 is 20034655.

55643002 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: 20034655 = 5 ⋅4006931.

It can be written as a sum of positive squares in only one way, i.e., 52577001 + 3066001 = 7251^2 + 1751^2 .

It is a super-2 number, since 2×55643002² = 6192287343144008, which contains 22 as substring.

It is an unprimeable number.

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, 13910749 + ... + 13910752.

Almost surely, 2^55643002 is an apocalyptic number.

55643002 is a deficient number, since it is larger than the sum of its proper divisors (27821504).

55643002 is a wasteful number, since it uses less digits than its factorization.

55643002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27821503.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 55643002 is about 7459.4237042817. The cubic root of 55643002 is about 381.7715116151.

Adding to 55643002 its reverse (20034655), we get a palindrome (75677657).

The spelling of 55643002 in words is "fifty-five million, six hundred forty-three thousand, two".