55591148 has 6 divisors (see below), whose sum is σ = 97284516. Its totient is φ = 27795572.

The previous prime is 55591097. The next prime is 55591171. The reversal of 55591148 is 84119555.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6948890 + ... + 6948897.

It is an arithmetic number, because the mean of its divisors is an integer number (16214086).

Almost surely, 2^55591148 is an apocalyptic number.

It is an amenable number.

55591148 is a deficient number, since it is larger than the sum of its proper divisors (41693368).

55591148 is a wasteful number, since it uses less digits than its factorization.

55591148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13897791 (or 13897789 counting only the distinct ones).

The product of its digits is 36000, while the sum is 38.

The square root of 55591148 is about 7455.9471564651. The cubic root of 55591148 is about 381.6528831450.

The spelling of 55591148 in words is "fifty-five million, five hundred ninety-one thousand, one hundred forty-eight".