53221232033465 has 4 divisors (see below), whose sum is σ = 63865478440164. Its totient is φ = 42576985626768.

The previous prime is 53221232033401. The next prime is 53221232033471. The reversal of 53221232033465 is 56433023212235.

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 25663383337216 + 27557848696249 = 5065904^2 + 5249557^2 .

It is a cyclic number.

It is not a de Polignac number, because 53221232033465 - 2⁶ = 53221232033401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5322123203342 + ... + 5322123203351.

It is an arithmetic number, because the mean of its divisors is an integer number (15966369610041).

Almost surely, 2^{53221232033465} is an apocalyptic number.

It is an amenable number.

53221232033465 is a deficient number, since it is larger than the sum of its proper divisors (10644246406699).

53221232033465 is a wasteful number, since it uses less digits than its factorization.

53221232033465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10644246406698.

The product of its (nonzero) digits is 777600, while the sum is 41.

The spelling of 53221232033465 in words is "fifty-three trillion, two hundred twenty-one billion, two hundred thirty-two million, thirty-three thousand, four hundred sixty-five".