55305362638 has 4 divisors (see below), whose sum is σ = 82958043960. Its totient is φ = 27652681318.

The previous prime is 55305362579. The next prime is 55305362639. The reversal of 55305362638 is 83626350355.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55305362639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13826340658 + ... + 13826340661.

It is an arithmetic number, because the mean of its divisors is an integer number (20739510990).

Almost surely, 2^55305362638 is an apocalyptic number.

55305362638 is a deficient number, since it is larger than the sum of its proper divisors (27652681322).

55305362638 is a wasteful number, since it uses less digits than its factorization.

55305362638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27652681321.

The product of its (nonzero) digits is 1944000, while the sum is 46.

The spelling of 55305362638 in words is "fifty-five billion, three hundred five million, three hundred sixty-two thousand, six hundred thirty-eight".