53221775405 has 16 divisors (see below), whose sum is σ = 66656490624. Its totient is φ = 40717934400.

The previous prime is 53221775377. The next prime is 53221775417. The reversal of 53221775405 is 50457712235.

It is a de Polignac number, because none of the positive numbers 2^k-53221775405 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553130 + ... + 642180.

It is an arithmetic number, because the mean of its divisors is an integer number (4166030664).

Almost surely, 2^53221775405 is an apocalyptic number.

It is an amenable number.

53221775405 is a deficient number, since it is larger than the sum of its proper divisors (13434715219).

53221775405 is a wasteful number, since it uses less digits than its factorization.

53221775405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94276.

The product of its (nonzero) digits is 294000, while the sum is 41.

The spelling of 53221775405 in words is "fifty-three billion, two hundred twenty-one million, seven hundred seventy-five thousand, four hundred five".