557060729 has 2 divisors, whose sum is σ = 557060730. Its totient is φ = 557060728.

The previous prime is 557060711. The next prime is 557060767. The reversal of 557060729 is 927060755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422384704 + 134676025 = 20552^2 + 11605^2 .

It is a cyclic number.

It is not a de Polignac number, because 557060729 - 2⁸ = 557060473 is a prime.

It is a super-2 number, since 2×557060729² = 620633311588022882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (557060429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278530364 + 278530365.

It is an arithmetic number, because the mean of its divisors is an integer number (278530365).

Almost surely, 2^557060729 is an apocalyptic number.

It is an amenable number.

557060729 is a deficient number, since it is larger than the sum of its proper divisors (1).

557060729 is an equidigital number, since it uses as much as digits as its factorization.

557060729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 557060729 is about 23602.1339925016. The cubic root of 557060729 is about 822.8124373570.

The spelling of 557060729 in words is "five hundred fifty-seven million, sixty thousand, seven hundred twenty-nine".