53035345021 has 2 divisors, whose sum is σ = 53035345022. Its totient is φ = 53035345020.

The previous prime is 53035345019. The next prime is 53035345067. The reversal of 53035345021 is 12054353035.

53035345021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41458660996 + 11576684025 = 203614^2 + 107595^2 .

It is a cyclic number.

It is not a de Polignac number, because 53035345021 - 2¹ = 53035345019 is a prime.

Together with 53035345019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53035345921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26517672510 + 26517672511.

It is an arithmetic number, because the mean of its divisors is an integer number (26517672511).

Almost surely, 2^53035345021 is an apocalyptic number.

It is an amenable number.

53035345021 is a deficient number, since it is larger than the sum of its proper divisors (1).

53035345021 is an equidigital number, since it uses as much as digits as its factorization.

53035345021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 53035345021 its reverse (12054353035), we get a palindrome (65089698056).

The spelling of 53035345021 in words is "fifty-three billion, thirty-five million, three hundred forty-five thousand, twenty-one".