55613747278 has 8 divisors (see below), whose sum is σ = 83421884160. Its totient is φ = 27806452560.

The previous prime is 55613747269. The next prime is 55613747279. The reversal of 55613747278 is 87274731655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55613747279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5518 + ... + 333553.

It is an arithmetic number, because the mean of its divisors is an integer number (10427735520).

Almost surely, 2^55613747278 is an apocalyptic number.

55613747278 is a deficient number, since it is larger than the sum of its proper divisors (27808136882).

55613747278 is a wasteful number, since it uses less digits than its factorization.

55613747278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421082.

The product of its digits is 9878400, while the sum is 55.

The spelling of 55613747278 in words is "fifty-five billion, six hundred thirteen million, seven hundred forty-seven thousand, two hundred seventy-eight".