55448345 has 4 divisors (see below), whose sum is σ = 66538020. Its totient is φ = 44358672.

The previous prime is 55448333. The next prime is 55448353. The reversal of 55448345 is 54384455.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26245129 + 29203216 = 5123^2 + 5404^2 .

It is a cyclic number.

It is not a de Polignac number, because 55448345 - 2²⁰ = 54399769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55448299 and 55448308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5544830 + ... + 5544839.

It is an arithmetic number, because the mean of its divisors is an integer number (16634505).

Almost surely, 2^55448345 is an apocalyptic number.

It is an amenable number.

55448345 is a deficient number, since it is larger than the sum of its proper divisors (11089675).

55448345 is a wasteful number, since it uses less digits than its factorization.

55448345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11089674.

The product of its digits is 192000, while the sum is 38.

The square root of 55448345 is about 7446.3645492280. The cubic root of 55448345 is about 381.3258052256.

The spelling of 55448345 in words is "fifty-five million, four hundred forty-eight thousand, three hundred forty-five".