55495661061 has 4 divisors (see below), whose sum is σ = 73994214752. Its totient is φ = 36997107372.

The previous prime is 55495661051. The next prime is 55495661087. The reversal of 55495661061 is 16016659455.

55495661061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55495661061 - 2¹¹ = 55495659013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55495661061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55495661051) 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, 9249276841 + ... + 9249276846.

It is an arithmetic number, because the mean of its divisors is an integer number (18498553688).

Almost surely, 2^55495661061 is an apocalyptic number.

It is an amenable number.

55495661061 is a deficient number, since it is larger than the sum of its proper divisors (18498553691).

55495661061 is a wasteful number, since it uses less digits than its factorization.

55495661061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18498553690.

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 55495661061 in words is "fifty-five billion, four hundred ninety-five million, six hundred sixty-one thousand, sixty-one".