55605500061 has 16 divisors (see below), whose sum is σ = 76345435200. Its totient is φ = 35973237888.

The previous prime is 55605500057. The next prime is 55605500099. The reversal of 55605500061 is 16000550655.

55605500061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55605500061 - 2² = 55605500057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55605499995 and 55605500031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55605500261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618816 + ... + 702953.

It is an arithmetic number, because the mean of its divisors is an integer number (4771589700).

Almost surely, 2^55605500061 is an apocalyptic number.

It is an amenable number.

55605500061 is a deficient number, since it is larger than the sum of its proper divisors (20739935139).

55605500061 is a wasteful number, since it uses less digits than its factorization.

55605500061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322188.

The product of its (nonzero) digits is 22500, while the sum is 33.

The spelling of 55605500061 in words is "fifty-five billion, six hundred five million, five hundred thousand, sixty-one".