55816345 has 8 divisors (see below), whose sum is σ = 72131976. Its totient is φ = 41218176.

The previous prime is 55816339. The next prime is 55816381. The reversal of 55816345 is 54361855.

55816345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 700569 + 55115776 = 837^2 + 7424^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55816345 - 2⁹ = 55815833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429292 + ... + 429421.

It is an arithmetic number, because the mean of its divisors is an integer number (9016497).

Almost surely, 2^55816345 is an apocalyptic number.

It is an amenable number.

55816345 is a deficient number, since it is larger than the sum of its proper divisors (16315631).

55816345 is a wasteful number, since it uses less digits than its factorization.

55816345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858731.

The product of its digits is 72000, while the sum is 37.

The square root of 55816345 is about 7471.0337303482. The cubic root of 55816345 is about 382.1675411562.

The spelling of 55816345 in words is "fifty-five million, eight hundred sixteen thousand, three hundred forty-five".