53215225525481 has 2 divisors, whose sum is σ = 53215225525482. Its totient is φ = 53215225525480.

The previous prime is 53215225525457. The next prime is 53215225525507. The reversal of 53215225525481 is 18452552251235.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49517834945881 + 3697390579600 = 7036891^2 + 1922860^2 .

It is a cyclic number.

It is not a de Polignac number, because 53215225525481 - 2¹⁸ = 53215225263337 is a prime.

It is a super-3 number, since 3×53215225525481³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (53215225525681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26607612762740 + 26607612762741.

It is an arithmetic number, because the mean of its divisors is an integer number (26607612762741).

Almost surely, 2^{53215225525481} is an apocalyptic number.

It is an amenable number.

53215225525481 is a deficient number, since it is larger than the sum of its proper divisors (1).

53215225525481 is an equidigital number, since it uses as much as digits as its factorization.

53215225525481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800000, while the sum is 50.

The spelling of 53215225525481 in words is "fifty-three trillion, two hundred fifteen billion, two hundred twenty-five million, five hundred twenty-five thousand, four hundred eighty-one".