53935328465 has 4 divisors (see below), whose sum is σ = 64722394164. Its totient is φ = 43148262768.

The previous prime is 53935328437. The next prime is 53935328467. The reversal of 53935328465 is 56482353935.

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 35960295424 + 17975033041 = 189632^2 + 134071^2 .

It is a cyclic number.

It is not a de Polignac number, because 53935328465 - 2¹⁸ = 53935066321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53935328467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5393532842 + ... + 5393532851.

It is an arithmetic number, because the mean of its divisors is an integer number (16180598541).

Almost surely, 2^53935328465 is an apocalyptic number.

It is an amenable number.

53935328465 is a deficient number, since it is larger than the sum of its proper divisors (10787065699).

53935328465 is a wasteful number, since it uses less digits than its factorization.

53935328465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10787065698.

The product of its digits is 11664000, while the sum is 53.

The spelling of 53935328465 in words is "fifty-three billion, nine hundred thirty-five million, three hundred twenty-eight thousand, four hundred sixty-five".