53641318553 has 2 divisors, whose sum is σ = 53641318554. Its totient is φ = 53641318552.

The previous prime is 53641318537. The next prime is 53641318561. The reversal of 53641318553 is 35581314635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53523747904 + 117570649 = 231352^2 + 10843^2 .

It is a cyclic number.

It is not a de Polignac number, because 53641318553 - 2⁴ = 53641318537 is a prime.

It is a super-2 number, since 2×53641318553² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53641318573) 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 as a sum of consecutive naturals, namely, 26820659276 + 26820659277.

It is an arithmetic number, because the mean of its divisors is an integer number (26820659277).

Almost surely, 2^53641318553 is an apocalyptic number.

It is an amenable number.

53641318553 is a deficient number, since it is larger than the sum of its proper divisors (1).

53641318553 is an equidigital number, since it uses as much as digits as its factorization.

53641318553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 44.

The spelling of 53641318553 in words is "fifty-three billion, six hundred forty-one million, three hundred eighteen thousand, five hundred fifty-three".