53578730081 has 2 divisors, whose sum is σ = 53578730082. Its totient is φ = 53578730080.

The previous prime is 53578730063. The next prime is 53578730131. The reversal of 53578730081 is 18003787535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41436673600 + 12142056481 = 203560^2 + 110191^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53578730081 is a prime.

It is a super-2 number, since 2×53578730081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53578730281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26789365040 + 26789365041.

It is an arithmetic number, because the mean of its divisors is an integer number (26789365041).

Almost surely, 2^53578730081 is an apocalyptic number.

It is an amenable number.

53578730081 is a deficient number, since it is larger than the sum of its proper divisors (1).

53578730081 is an equidigital number, since it uses as much as digits as its factorization.

53578730081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 53578730081 in words is "fifty-three billion, five hundred seventy-eight million, seven hundred thirty thousand, eighty-one".