216607725053 has 2 divisors, whose sum is σ = 216607725054. Its totient is φ = 216607725052.

The previous prime is 216607725049. The next prime is 216607725083. The reversal of 216607725053 is 350527706612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188323885369 + 28283839684 = 433963^2 + 168178^2 .

It is a cyclic number.

It is not a de Polignac number, because 216607725053 - 2² = 216607725049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216607724995 and 216607725013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216607725083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108303862526 + 108303862527.

It is an arithmetic number, because the mean of its divisors is an integer number (108303862527).

Almost surely, 2^216607725053 is an apocalyptic number.

It is an amenable number.

216607725053 is a deficient number, since it is larger than the sum of its proper divisors (1).

216607725053 is an equidigital number, since it uses as much as digits as its factorization.

216607725053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 216607725053 in words is "two hundred sixteen billion, six hundred seven million, seven hundred twenty-five thousand, fifty-three".