55981879598 has 8 divisors (see below), whose sum is σ = 83982709008. Its totient is φ = 27987643264.

The previous prime is 55981879571. The next prime is 55981879633. The reversal of 55981879598 is 89597818955.

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, 1626986 + ... + 1661037.

It is an arithmetic number, because the mean of its divisors is an integer number (10497838626).

Almost surely, 2^55981879598 is an apocalyptic number.

55981879598 is a deficient number, since it is larger than the sum of its proper divisors (28000829410).

55981879598 is a wasteful number, since it uses less digits than its factorization.

55981879598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296538.

The product of its digits is 326592000, while the sum is 74.

The spelling of 55981879598 in words is "fifty-five billion, nine hundred eighty-one million, eight hundred seventy-nine thousand, five hundred ninety-eight".