53352707521 has 2 divisors, whose sum is σ = 53352707522. Its totient is φ = 53352707520.

The previous prime is 53352707519. The next prime is 53352707531. The reversal of 53352707521 is 12570725335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40733330625 + 12619376896 = 201825^2 + 112336^2 .

It is a cyclic number.

It is not a de Polignac number, because 53352707521 - 2¹ = 53352707519 is a prime.

It is a super-2 number, since 2×53352707521² (a number of 22 digits) contains 22 as substring.

Together with 53352707519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53352707531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26676353760 + 26676353761.

It is an arithmetic number, because the mean of its divisors is an integer number (26676353761).

Almost surely, 2^53352707521 is an apocalyptic number.

It is an amenable number.

53352707521 is a deficient number, since it is larger than the sum of its proper divisors (1).

53352707521 is an equidigital number, since it uses as much as digits as its factorization.

53352707521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 220500, while the sum is 40.

The spelling of 53352707521 in words is "fifty-three billion, three hundred fifty-two million, seven hundred seven thousand, five hundred twenty-one".