55573345 has 4 divisors (see below), whose sum is σ = 66688020. Its totient is φ = 44458672.

The previous prime is 55573321. The next prime is 55573361. The reversal of 55573345 is 54337555.

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 15618304 + 39955041 = 3952^2 + 6321^2 .

It is a cyclic number.

It is not a de Polignac number, because 55573345 - 2¹¹ = 55571297 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5557330 + ... + 5557339.

It is an arithmetic number, because the mean of its divisors is an integer number (16672005).

Almost surely, 2^55573345 is an apocalyptic number.

It is an amenable number.

55573345 is a deficient number, since it is larger than the sum of its proper divisors (11114675).

55573345 is a wasteful number, since it uses less digits than its factorization.

55573345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11114674.

The product of its digits is 157500, while the sum is 37.

The square root of 55573345 is about 7454.7531816956. The cubic root of 55573345 is about 381.6121374989.

The spelling of 55573345 in words is "fifty-five million, five hundred seventy-three thousand, three hundred forty-five".