5147555509 has 2 divisors, whose sum is σ = 5147555510. Its totient is φ = 5147555508.

The previous prime is 5147555461. The next prime is 5147555513. The reversal of 5147555509 is 9055557415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4463576100 + 683979409 = 66810^2 + 26153^2 .

It is a cyclic number.

It is not a de Polignac number, because 5147555509 - 2⁷ = 5147555381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5147555599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2573777754 + 2573777755.

It is an arithmetic number, because the mean of its divisors is an integer number (2573777755).

Almost surely, 2^5147555509 is an apocalyptic number.

It is an amenable number.

5147555509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5147555509 is an equidigital number, since it uses as much as digits as its factorization.

5147555509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 787500, while the sum is 46.

The square root of 5147555509 is about 71746.4668746831. The cubic root of 5147555509 is about 1726.6342290823.

The spelling of 5147555509 in words is "five billion, one hundred forty-seven million, five hundred fifty-five thousand, five hundred nine".