55432889518 has 8 divisors (see below), whose sum is σ = 83153531160. Its totient is φ = 27715045800.

The previous prime is 55432889497. The next prime is 55432889527. The reversal of 55432889518 is 81598823455.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649228 + ... + 729631.

It is an arithmetic number, because the mean of its divisors is an integer number (10394191395).

Almost surely, 2^55432889518 is an apocalyptic number.

55432889518 is a deficient number, since it is larger than the sum of its proper divisors (27720641642).

55432889518 is a wasteful number, since it uses less digits than its factorization.

55432889518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398962.

The product of its digits is 13824000, while the sum is 58.

The spelling of 55432889518 in words is "fifty-five billion, four hundred thirty-two million, eight hundred eighty-nine thousand, five hundred eighteen".