53406510197 has 2 divisors, whose sum is σ = 53406510198. Its totient is φ = 53406510196.

The previous prime is 53406510187. The next prime is 53406510307. The reversal of 53406510197 is 79101560435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29430774916 + 23975735281 = 171554^2 + 154841^2 .

It is a cyclic number.

It is not a de Polignac number, because 53406510197 - 2¹⁰ = 53406509173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53406510127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26703255098 + 26703255099.

It is an arithmetic number, because the mean of its divisors is an integer number (26703255099).

Almost surely, 2^53406510197 is an apocalyptic number.

It is an amenable number.

53406510197 is a deficient number, since it is larger than the sum of its proper divisors (1).

53406510197 is an equidigital number, since it uses as much as digits as its factorization.

53406510197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 53406510197 in words is "fifty-three billion, four hundred six million, five hundred ten thousand, one hundred ninety-seven".