5561500051655 has 8 divisors (see below), whose sum is σ = 6697893204672. Its totient is φ = 4433137946208.

The previous prime is 5561500051571. The next prime is 5561500051661.

5561500051655 is nontrivially palindromic in base 10.

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 5561500051655 - 2¹⁸ = 5561499789511 is a prime.

It is a Duffinian number.

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, 2007760367 + ... + 2007763136.

It is an arithmetic number, because the mean of its divisors is an integer number (837236650584).

Almost surely, 2^{5561500051655} is an apocalyptic number.

5561500051655 is a deficient number, since it is larger than the sum of its proper divisors (1136393153017).

5561500051655 is a wasteful number, since it uses less digits than its factorization.

5561500051655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4015523785.

The product of its (nonzero) digits is 562500, while the sum is 44.

It can be divided in two parts, 55615000 and 51655, that added together give a palindrome (55666655).

The spelling of 5561500051655 in words is "five trillion, five hundred sixty-one billion, five hundred million, fifty-one thousand, six hundred fifty-five".