55671717072 has 20 divisors (see below), whose sum is σ = 143818602560. Its totient is φ = 18557239008.

The previous prime is 55671717029. The next prime is 55671717131. The reversal of 55671717072 is 27071717655.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1159827439 = 55671717072 / (5 + 5 + 6 + 7 + 1 + 7 + 1 + 7 + 0 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579913672 + ... + 579913767.

It is an arithmetic number, because the mean of its divisors is an integer number (7190930128).

Almost surely, 2^55671717072 is an apocalyptic number.

It is an amenable number.

55671717072 is an abundant number, since it is smaller than the sum of its proper divisors (88146885488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55671717072 is a wasteful number, since it uses less digits than its factorization.

55671717072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159827450 (or 1159827444 counting only the distinct ones).

The product of its (nonzero) digits is 720300, while the sum is 48.

The spelling of 55671717072 in words is "fifty-five billion, six hundred seventy-one million, seven hundred seventeen thousand, seventy-two".