53359945 has 4 divisors (see below), whose sum is σ = 64031940. Its totient is φ = 42687952.

The previous prime is 53359879. The next prime is 53359949. The reversal of 53359945 is 54995335.

53359945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54995335 = 5 ⋅10999067.

It can be written as a sum of positive squares in 2 ways, for example, as 10705984 + 42653961 = 3272^2 + 6531^2 .

It is a cyclic number.

It is not a de Polignac number, because 53359945 - 2¹⁷ = 53228873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53359949) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5335990 + ... + 5335999.

It is an arithmetic number, because the mean of its divisors is an integer number (16007985).

Almost surely, 2^53359945 is an apocalyptic number.

It is an amenable number.

53359945 is a deficient number, since it is larger than the sum of its proper divisors (10671995).

53359945 is a wasteful number, since it uses less digits than its factorization.

53359945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10671994.

The product of its digits is 364500, while the sum is 43.

The square root of 53359945 is about 7304.7891824474. The cubic root of 53359945 is about 376.4770074852.

The spelling of 53359945 in words is "fifty-three million, three hundred fifty-nine thousand, nine hundred forty-five".