65557345 has 12 divisors (see below), whose sum is σ = 91513044. Its totient is φ = 44953440.

The previous prime is 65557309. The next prime is 65557351. The reversal of 65557345 is 54375556.

65557345 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 2 ways, for example, as 10188864 + 55368481 = 3192^2 + 7441^2 .

It is not a de Polignac number, because 65557345 - 2⁹ = 65556833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65557298 and 65557307.

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 11 ways as a sum of consecutive naturals, for example, 133546 + ... + 134035.

It is an arithmetic number, because the mean of its divisors is an integer number (7626087).

Almost surely, 2^65557345 is an apocalyptic number.

It is an amenable number.

65557345 is a deficient number, since it is larger than the sum of its proper divisors (25955699).

65557345 is a wasteful number, since it uses less digits than its factorization.

65557345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267600 (or 267593 counting only the distinct ones).

The product of its digits is 315000, while the sum is 40.

The square root of 65557345 is about 8096.7490389662. The cubic root of 65557345 is about 403.2185023981.

The spelling of 65557345 in words is "sixty-five million, five hundred fifty-seven thousand, three hundred forty-five".