55610511105561 has 8 divisors (see below), whose sum is σ = 74147389837920. Its totient is φ = 37073653221792.

The previous prime is 55610511105559. The next prime is 55610511105631. The reversal of 55610511105561 is 16550111501655.

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

It is not a de Polignac number, because 55610511105561 - 2¹ = 55610511105559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55610511109561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2748685 + ... + 10898453.

It is an arithmetic number, because the mean of its divisors is an integer number (9268423729740).

Almost surely, 2^{55610511105561} is an apocalyptic number.

It is an amenable number.

55610511105561 is a deficient number, since it is larger than the sum of its proper divisors (18536878732359).

55610511105561 is a wasteful number, since it uses less digits than its factorization.

55610511105561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10424295.

The product of its (nonzero) digits is 112500, while the sum is 42.

The spelling of 55610511105561 in words is "fifty-five trillion, six hundred ten billion, five hundred eleven million, one hundred five thousand, five hundred sixty-one".