53287689841 has 4 divisors (see below), whose sum is σ = 53288253952. Its totient is φ = 53287125732.

The previous prime is 53287689839. The next prime is 53287689869. The reversal of 53287689841 is 14898678235.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 53287689841 - 2¹ = 53287689839 is a prime.

It is a super-2 number, since 2×53287689841² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53287689841.

It is not an unprimeable number, because it can be changed into a prime (53287689941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102081 + ... + 342046.

It is an arithmetic number, because the mean of its divisors is an integer number (13322063488).

Almost surely, 2^53287689841 is an apocalyptic number.

It is an amenable number.

53287689841 is a deficient number, since it is larger than the sum of its proper divisors (564111).

53287689841 is a wasteful number, since it uses less digits than its factorization.

53287689841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564110.

The product of its digits is 23224320, while the sum is 61.

The spelling of 53287689841 in words is "fifty-three billion, two hundred eighty-seven million, six hundred eighty-nine thousand, eight hundred forty-one".