53120345 has 8 divisors (see below), whose sum is σ = 65467464. Its totient is φ = 41347584.

The previous prime is 53120339. The next prime is 53120357. The reversal of 53120345 is 54302135.

53120345 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 2155024 + 50965321 = 1468^2 + 7139^2 .

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 53120345 - 2¹² = 53116249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53120345.

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, 143384 + ... + 143753.

It is an arithmetic number, because the mean of its divisors is an integer number (8183433).

Almost surely, 2^53120345 is an apocalyptic number.

It is an amenable number.

53120345 is a deficient number, since it is larger than the sum of its proper divisors (12347119).

53120345 is a wasteful number, since it uses less digits than its factorization.

53120345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287179.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 53120345 is about 7288.3705311956. The cubic root of 53120345 is about 375.9126688116.

The spelling of 53120345 in words is "fifty-three million, one hundred twenty thousand, three hundred forty-five".