4055513509 has 2 divisors, whose sum is σ = 4055513510. Its totient is φ = 4055513508.

The previous prime is 4055513507. The next prime is 4055513531. The reversal of 4055513509 is 9053155504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3266465409 + 789048100 = 57153^2 + 28090^2 .

It is a cyclic number.

It is not a de Polignac number, because 4055513509 - 2¹ = 4055513507 is a prime.

Together with 4055513507, 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 (4055513507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2027756754 + 2027756755.

It is an arithmetic number, because the mean of its divisors is an integer number (2027756755).

Almost surely, 2^4055513509 is an apocalyptic number.

It is an amenable number.

4055513509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4055513509 is an equidigital number, since it uses as much as digits as its factorization.

4055513509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 37.

The square root of 4055513509 is about 63682.9137916914. The cubic root of 4055513509 is about 1594.7108563502.

It can be divided in two parts, 405551 and 3509, that added together give a triangular number (409060 = T₉₀₄).

The spelling of 4055513509 in words is "four billion, fifty-five million, five hundred thirteen thousand, five hundred nine".