55219870684 has 24 divisors (see below), whose sum is σ = 105425728128. Its totient is φ = 25098518640.

The previous prime is 55219870631. The next prime is 55219870729. The reversal of 55219870684 is 48607891255.

It is a happy number.

55219870684 is nontrivially palindromic in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1407259 + ... + 1445965.

It is an arithmetic number, because the mean of its divisors is an integer number (4392738672).

Almost surely, 2^55219870684 is an apocalyptic number.

It is an amenable number.

55219870684 is a deficient number, since it is larger than the sum of its proper divisors (50205857444).

55219870684 is a wasteful number, since it uses less digits than its factorization.

55219870684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71145 (or 71143 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 55219870684 in words is "fifty-five billion, two hundred nineteen million, eight hundred seventy thousand, six hundred eighty-four".