55656617060501 has 4 divisors (see below), whose sum is σ = 55657268458572. Its totient is φ = 55655965662432.

The previous prime is 55656617060453. The next prime is 55656617060503. The reversal of 55656617060501 is 10506071665655.

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 48979716099601 + 6676900960900 = 6998551^2 + 2583970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55656617060501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55656617060503) 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, 325570856 + ... + 325741761.

It is an arithmetic number, because the mean of its divisors is an integer number (13914317114643).

Almost surely, 2^{55656617060501} is an apocalyptic number.

It is an amenable number.

55656617060501 is a deficient number, since it is larger than the sum of its proper divisors (651398071).

55656617060501 is an equidigital number, since it uses as much as digits as its factorization.

55656617060501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651398070.

The product of its (nonzero) digits is 5670000, while the sum is 53.

The spelling of 55656617060501 in words is "fifty-five trillion, six hundred fifty-six billion, six hundred seventeen million, sixty thousand, five hundred one".