53315321105405 has 4 divisors (see below), whose sum is σ = 63978385326492. Its totient is φ = 42652256884320.

The previous prime is 53315321105393. The next prime is 53315321105419. The reversal of 53315321105405 is 50450112351335.

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 27719351016889 + 25595970088516 = 5264917^2 + 5059246^2 .

It is not a de Polignac number, because 53315321105405 - 2¹⁸ = 53315320843261 is a prime.

It is a super-2 number, since 2×53315321105405² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 5331532110536 + ... + 5331532110545.

It is an arithmetic number, because the mean of its divisors is an integer number (15994596331623).

Almost surely, 2^{53315321105405} is an apocalyptic number.

It is an amenable number.

53315321105405 is a deficient number, since it is larger than the sum of its proper divisors (10663064221087).

53315321105405 is a wasteful number, since it uses less digits than its factorization.

53315321105405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10663064221086.

The product of its (nonzero) digits is 135000, while the sum is 38.

The spelling of 53315321105405 in words is "fifty-three trillion, three hundred fifteen billion, three hundred twenty-one million, one hundred five thousand, four hundred five".