55221214148 has 24 divisors (see below), whose sum is σ = 101991741600. Its totient is φ = 26088386688.

The previous prime is 55221214123. The next prime is 55221214157. The reversal of 55221214148 is 84141212255.

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, 929765 + ... + 987372.

It is an arithmetic number, because the mean of its divisors is an integer number (4249655900).

Almost surely, 2^55221214148 is an apocalyptic number.

It is an amenable number.

55221214148 is a deficient number, since it is larger than the sum of its proper divisors (46770527452).

55221214148 is a wasteful number, since it uses less digits than its factorization.

55221214148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917539 (or 1917537 counting only the distinct ones).

The product of its digits is 25600, while the sum is 35.

The spelling of 55221214148 in words is "fifty-five billion, two hundred twenty-one million, two hundred fourteen thousand, one hundred forty-eight".