55075660647 has 16 divisors (see below), whose sum is σ = 83928628992. Its totient is φ = 31470376320.

The previous prime is 55075660621. The next prime is 55075660657. The reversal of 55075660647 is 74606657055.

It is not a de Polignac number, because 55075660647 - 2¹⁵ = 55075627879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55075660647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55075660657) 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, 566872 + ... + 656882.

It is an arithmetic number, because the mean of its divisors is an integer number (5245539312).

Almost surely, 2^55075660647 is an apocalyptic number.

55075660647 is a deficient number, since it is larger than the sum of its proper divisors (28852968345).

55075660647 is a wasteful number, since it uses less digits than its factorization.

55075660647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119158.

The product of its (nonzero) digits is 5292000, while the sum is 51.

The spelling of 55075660647 in words is "fifty-five billion, seventy-five million, six hundred sixty thousand, six hundred forty-seven".