521124192053 has 2 divisors, whose sum is σ = 521124192054. Its totient is φ = 521124192052.

The previous prime is 521124191993. The next prime is 521124192077. The reversal of 521124192053 is 350291421125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 484496739364 + 36627452689 = 696058^2 + 191383^2 .

It is a cyclic number.

It is not a de Polignac number, because 521124192053 - 2⁶ = 521124191989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (521124122053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260562096026 + 260562096027.

It is an arithmetic number, because the mean of its divisors is an integer number (260562096027).

Almost surely, 2^521124192053 is an apocalyptic number.

It is an amenable number.

521124192053 is a deficient number, since it is larger than the sum of its proper divisors (1).

521124192053 is an equidigital number, since it uses as much as digits as its factorization.

521124192053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 521124192053 in words is "five hundred twenty-one billion, one hundred twenty-four million, one hundred ninety-two thousand, fifty-three".