53085361571 has 18 divisors (see below), whose sum is σ = 58477794588. Its totient is φ = 47791893240.

The previous prime is 53085361507. The next prime is 53085361601. The reversal of 53085361571 is 17516358035.

It is not a de Polignac number, because 53085361571 - 2⁶ = 53085361507 is a prime.

It is a super-2 number, since 2×53085361571² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53085360571) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 97047920 + ... + 97048466.

It is an arithmetic number, because the mean of its divisors is an integer number (3248766366).

Almost surely, 2^53085361571 is an apocalyptic number.

53085361571 is a deficient number, since it is larger than the sum of its proper divisors (5392433017).

53085361571 is an frugal number, since it uses more digits than its factorization.

53085361571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 44.

Multiplying 53085361571 by its sum of digits (44), we get a square (2335755909124 = 1528318²).

The spelling of 53085361571 in words is "fifty-three billion, eighty-five million, three hundred sixty-one thousand, five hundred seventy-one".