616523053 has 2 divisors, whose sum is σ = 616523054. Its totient is φ = 616523052.

The previous prime is 616523051. The next prime is 616523069. The reversal of 616523053 is 350325616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440244324 + 176278729 = 20982^2 + 13277^2 .

It is a cyclic number.

It is not a de Polignac number, because 616523053 - 2¹ = 616523051 is a prime.

Together with 616523051, 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 (616523051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308261526 + 308261527.

It is an arithmetic number, because the mean of its divisors is an integer number (308261527).

Almost surely, 2^616523053 is an apocalyptic number.

It is an amenable number.

616523053 is a deficient number, since it is larger than the sum of its proper divisors (1).

616523053 is an equidigital number, since it uses as much as digits as its factorization.

616523053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 616523053 is about 24829.8822590845. The cubic root of 616523053 is about 851.1049312225.

Adding to 616523053 its reverse (350325616), we get a palindrome (966848669).

The spelling of 616523053 in words is "six hundred sixteen million, five hundred twenty-three thousand, fifty-three".