55148317 has 16 divisors (see below), whose sum is σ = 67893760. Its totient is φ = 43736112.

The previous prime is 55148299. The next prime is 55148329. The reversal of 55148317 is 71384155.

It is a happy number.

It is not a de Polignac number, because 55148317 - 2⁷ = 55148189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55148617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 898 + ... + 10540.

It is an arithmetic number, because the mean of its divisors is an integer number (4243360).

Almost surely, 2^55148317 is an apocalyptic number.

It is an amenable number.

55148317 is a deficient number, since it is larger than the sum of its proper divisors (12745443).

55148317 is a wasteful number, since it uses less digits than its factorization.

55148317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9712.

The product of its digits is 16800, while the sum is 34.

The square root of 55148317 is about 7426.1912849051. The cubic root of 55148317 is about 380.6367831947.

It can be divided in two parts, 5514 and 8317, that added together give a palindrome (13831).

The spelling of 55148317 in words is "fifty-five million, one hundred forty-eight thousand, three hundred seventeen".