55561111733 has 4 divisors (see below), whose sum is σ = 55562094060. Its totient is φ = 55560129408.

The previous prime is 55561111729. The next prime is 55561111807. The reversal of 55561111733 is 33711116555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45021625489 + 10539486244 = 212183^2 + 102662^2 .

It is a cyclic number.

It is not a de Polignac number, because 55561111733 - 2² = 55561111729 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55561110733) 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, 400778 + ... + 521291.

It is an arithmetic number, because the mean of its divisors is an integer number (13890523515).

Almost surely, 2^55561111733 is an apocalyptic number.

It is an amenable number.

55561111733 is a deficient number, since it is larger than the sum of its proper divisors (982327).

55561111733 is an equidigital number, since it uses as much as digits as its factorization.

55561111733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982326.

The product of its digits is 47250, while the sum is 38.

The spelling of 55561111733 in words is "fifty-five billion, five hundred sixty-one million, one hundred eleven thousand, seven hundred thirty-three".