557517949 has 2 divisors, whose sum is σ = 557517950. Its totient is φ = 557517948.

The previous prime is 557517913. The next prime is 557517991. The reversal of 557517949 is 949715755.

557517949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 557432100 + 85849 = 23610^2 + 293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557517949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 557517896 and 557517905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557511949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278758974 + 278758975.

It is an arithmetic number, because the mean of its divisors is an integer number (278758975).

Almost surely, 2^557517949 is an apocalyptic number.

It is an amenable number.

557517949 is a deficient number, since it is larger than the sum of its proper divisors (1).

557517949 is an equidigital number, since it uses as much as digits as its factorization.

557517949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1984500, while the sum is 52.

The square root of 557517949 is about 23611.8179943858. The cubic root of 557517949 is about 823.0374896738.

The spelling of 557517949 in words is "five hundred fifty-seven million, five hundred seventeen thousand, nine hundred forty-nine".