616475513 has 2 divisors, whose sum is σ = 616475514. Its totient is φ = 616475512.

The previous prime is 616475491. The next prime is 616475527. The reversal of 616475513 is 315574616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 612463504 + 4012009 = 24748^2 + 2003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616475513 is a prime.

It is a super-2 number, since 2×616475513² = 760084116257226338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (616475213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308237756 + 308237757.

It is an arithmetic number, because the mean of its divisors is an integer number (308237757).

Almost surely, 2^616475513 is an apocalyptic number.

It is an amenable number.

616475513 is a deficient number, since it is larger than the sum of its proper divisors (1).

616475513 is an equidigital number, since it uses as much as digits as its factorization.

616475513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 616475513 is about 24828.9249263837. The cubic root of 616475513 is about 851.0830544691.

The spelling of 616475513 in words is "six hundred sixteen million, four hundred seventy-five thousand, five hundred thirteen".