55605651607 has 32 divisors (see below), whose sum is σ = 63059318784. Its totient is φ = 48576153600.

The previous prime is 55605651593. The next prime is 55605651631. The reversal of 55605651607 is 70615650655.

It is a cyclic number.

It is not a de Polignac number, because 55605651607 - 2¹¹ = 55605649559 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55605651107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32766183 + ... + 32767879.

It is an arithmetic number, because the mean of its divisors is an integer number (1970603712).

Almost surely, 2^55605651607 is an apocalyptic number.

55605651607 is a deficient number, since it is larger than the sum of its proper divisors (7453667177).

55605651607 is a wasteful number, since it uses less digits than its factorization.

55605651607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359.

The product of its (nonzero) digits is 945000, while the sum is 46.

The spelling of 55605651607 in words is "fifty-five billion, six hundred five million, six hundred fifty-one thousand, six hundred seven".