557780539 has 2 divisors, whose sum is σ = 557780540. Its totient is φ = 557780538.

The previous prime is 557780491. The next prime is 557780581. The reversal of 557780539 is 935087755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 557780539 - 2⁷ = 557780411 is a prime.

It is a super-2 number, since 2×557780539² = 622238259374261042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 557780492 and 557780501.

It is not a weakly prime, because it can be changed into another prime (557780939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278890269 + 278890270.

It is an arithmetic number, because the mean of its divisors is an integer number (278890270).

Almost surely, 2^557780539 is an apocalyptic number.

557780539 is a deficient number, since it is larger than the sum of its proper divisors (1).

557780539 is an equidigital number, since it uses as much as digits as its factorization.

557780539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1323000, while the sum is 49.

The square root of 557780539 is about 23617.3779027224. The cubic root of 557780539 is about 823.1666858087.

The spelling of 557780539 in words is "five hundred fifty-seven million, seven hundred eighty thousand, five hundred thirty-nine".