55463166571 has 4 divisors (see below), whose sum is σ = 55584530632. Its totient is φ = 55341802512.

The previous prime is 55463166559. The next prime is 55463166599. The reversal of 55463166571 is 17566136455.

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-55463166571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55463166071) 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, 60681345 + ... + 60682258.

It is an arithmetic number, because the mean of its divisors is an integer number (13896132658).

Almost surely, 2^55463166571 is an apocalyptic number.

55463166571 is a deficient number, since it is larger than the sum of its proper divisors (121364061).

55463166571 is a wasteful number, since it uses less digits than its factorization.

55463166571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121364060.

The product of its digits is 2268000, while the sum is 49.

The spelling of 55463166571 in words is "fifty-five billion, four hundred sixty-three million, one hundred sixty-six thousand, five hundred seventy-one".