55613057621608 has 8 divisors (see below), whose sum is σ = 104274483040530. Its totient is φ = 27806528810800.

The previous prime is 55613057621579. The next prime is 55613057621633. The reversal of 55613057621608 is 80612675031655.

It can be written as a sum of positive squares in only one way, i.e., 34903258778404 + 20709798843204 = 5907898^2 + 4550802^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3475816101343 + ... + 3475816101358.

Almost surely, 2^{55613057621608} is an apocalyptic number.

It is an amenable number.

55613057621608 is a deficient number, since it is larger than the sum of its proper divisors (48661425418922).

55613057621608 is a wasteful number, since it uses less digits than its factorization.

55613057621608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951632202707 (or 6951632202703 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 55.

The spelling of 55613057621608 in words is "fifty-five trillion, six hundred thirteen billion, fifty-seven million, six hundred twenty-one thousand, six hundred eight".