55561101061 has 8 divisors (see below), whose sum is σ = 55710996480. Its totient is φ = 55411404528.

The previous prime is 55561101053. The next prime is 55561101077. The reversal of 55561101061 is 16010116555.

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 55561101061 - 2³ = 55561101053 is a prime.

It is a super-2 number, since 2×55561101061² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55561101461) 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, 518460 + ... + 616378.

It is an arithmetic number, because the mean of its divisors is an integer number (6963874560).

Almost surely, 2^55561101061 is an apocalyptic number.

It is an amenable number.

55561101061 is a deficient number, since it is larger than the sum of its proper divisors (149895419).

55561101061 is an equidigital number, since it uses as much as digits as its factorization.

55561101061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99443.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 55561101061 in words is "fifty-five billion, five hundred sixty-one million, one hundred one thousand, sixty-one".