53350527521 has 2 divisors, whose sum is σ = 53350527522. Its totient is φ = 53350527520.

The previous prime is 53350527499. The next prime is 53350527547. The reversal of 53350527521 is 12572505335.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44647690000 + 8702837521 = 211300^2 + 93289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53350527521 is a prime.

It is not a weakly prime, because it can be changed into another prime (53350527221) 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, 26675263760 + 26675263761.

It is an arithmetic number, because the mean of its divisors is an integer number (26675263761).

Almost surely, 2^53350527521 is an apocalyptic number.

It is an amenable number.

53350527521 is a deficient number, since it is larger than the sum of its proper divisors (1).

53350527521 is an equidigital number, since it uses as much as digits as its factorization.

53350527521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157500, while the sum is 38.

The spelling of 53350527521 in words is "fifty-three billion, three hundred fifty million, five hundred twenty-seven thousand, five hundred twenty-one".