55653855007 has 4 divisors (see below), whose sum is σ = 55670935240. Its totient is φ = 55636774776.

The previous prime is 55653855001. The next prime is 55653855011. The reversal of 55653855007 is 70055835655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55653855007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55653855001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8535228 + ... + 8541745.

It is an arithmetic number, because the mean of its divisors is an integer number (13917733810).

Almost surely, 2^55653855007 is an apocalyptic number.

55653855007 is a deficient number, since it is larger than the sum of its proper divisors (17080233).

55653855007 is a wasteful number, since it uses less digits than its factorization.

55653855007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17080232.

The product of its (nonzero) digits is 3150000, while the sum is 49.

The spelling of 55653855007 in words is "fifty-five billion, six hundred fifty-three million, eight hundred fifty-five thousand, seven".