55537865711 has 4 divisors (see below), whose sum is σ = 55542996672. Its totient is φ = 55532734752.

The previous prime is 55537865671. The next prime is 55537865717. The reversal of 55537865711 is 11756873555.

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-55537865711 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 (55537865717) 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, 2549210 + ... + 2570903.

It is an arithmetic number, because the mean of its divisors is an integer number (13885749168).

Almost surely, 2^55537865711 is an apocalyptic number.

55537865711 is a deficient number, since it is larger than the sum of its proper divisors (5130961).

55537865711 is a wasteful number, since it uses less digits than its factorization.

55537865711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5130960.

The product of its digits is 4410000, while the sum is 53.

The spelling of 55537865711 in words is "fifty-five billion, five hundred thirty-seven million, eight hundred sixty-five thousand, seven hundred eleven".