55581602894 has 8 divisors (see below), whose sum is σ = 84785496120. Its totient is φ = 27319770856.

The previous prime is 55581602893. The next prime is 55581602897. The reversal of 55581602894 is 49820618555.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55581602893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235515149 + ... + 235515384.

It is an arithmetic number, because the mean of its divisors is an integer number (10598187015).

Almost surely, 2^55581602894 is an apocalyptic number.

55581602894 is a deficient number, since it is larger than the sum of its proper divisors (29203893226).

55581602894 is a wasteful number, since it uses less digits than its factorization.

55581602894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471030594.

The product of its (nonzero) digits is 3456000, while the sum is 53.

The spelling of 55581602894 in words is "fifty-five billion, five hundred eighty-one million, six hundred two thousand, eight hundred ninety-four".