53772375843217 has 2 divisors, whose sum is σ = 53772375843218. Its totient is φ = 53772375843216.

The previous prime is 53772375843187. The next prime is 53772375843229. The reversal of 53772375843217 is 71234857327735.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51802552365201 + 1969823478016 = 7197399^2 + 1403504^2 .

It is a cyclic number.

It is not a de Polignac number, because 53772375843217 - 2¹⁹ = 53772375318929 is a prime.

It is not a weakly prime, because it can be changed into another prime (53772375843287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26886187921608 + 26886187921609.

It is an arithmetic number, because the mean of its divisors is an integer number (26886187921609).

Almost surely, 2^{53772375843217} is an apocalyptic number.

It is an amenable number.

53772375843217 is a deficient number, since it is larger than the sum of its proper divisors (1).

53772375843217 is an equidigital number, since it uses as much as digits as its factorization.

53772375843217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207446400, while the sum is 64.

The spelling of 53772375843217 in words is "fifty-three trillion, seven hundred seventy-two billion, three hundred seventy-five million, eight hundred forty-three thousand, two hundred seventeen".