55551893605 has 8 divisors (see below), whose sum is σ = 71790139512. Its totient is φ = 41022936768.

The previous prime is 55551893563. The next prime is 55551893651. The reversal of 55551893605 is 50639815555.

55551893605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2593457476 + 52958436129 = 50926^2 + 230127^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 55551893605 - 2⁷ = 55551893477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427322194 + ... + 427322323.

It is an arithmetic number, because the mean of its divisors is an integer number (8973767439).

Almost surely, 2^55551893605 is an apocalyptic number.

It is an amenable number.

55551893605 is a deficient number, since it is larger than the sum of its proper divisors (16238245907).

55551893605 is a wasteful number, since it uses less digits than its factorization.

55551893605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854644535.

The product of its (nonzero) digits is 4050000, while the sum is 52.

The spelling of 55551893605 in words is "fifty-five billion, five hundred fifty-one million, eight hundred ninety-three thousand, six hundred five".