57900509 has 2 divisors, whose sum is σ = 57900510. Its totient is φ = 57900508.

The previous prime is 57900439. The next prime is 57900517. The reversal of 57900509 is 90500975.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33120025 + 24780484 = 5755^2 + 4978^2 .

It is a cyclic number.

It is not a de Polignac number, because 57900509 - 2⁸ = 57900253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57900709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28950254 + 28950255.

It is an arithmetic number, because the mean of its divisors is an integer number (28950255).

Almost surely, 2^57900509 is an apocalyptic number.

It is an amenable number.

57900509 is a deficient number, since it is larger than the sum of its proper divisors (1).

57900509 is an equidigital number, since it uses as much as digits as its factorization.

57900509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14175, while the sum is 35.

The square root of 57900509 is about 7609.2383981579. The cubic root of 57900509 is about 386.8662055552.

The spelling of 57900509 in words is "fifty-seven million, nine hundred thousand, five hundred nine".