557534381 has 2 divisors, whose sum is σ = 557534382. Its totient is φ = 557534380.

The previous prime is 557534377. The next prime is 557534413. The reversal of 557534381 is 183435755.

557534381 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., 335256100 + 222278281 = 18310^2 + 14909^2 .

It is a cyclic number.

It is not a de Polignac number, because 557534381 - 2² = 557534377 is a prime.

It is a super-2 number, since 2×557534381² = 621689171994106322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557534311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278767190 + 278767191.

It is an arithmetic number, because the mean of its divisors is an integer number (278767191).

Almost surely, 2^557534381 is an apocalyptic number.

It is an amenable number.

557534381 is a deficient number, since it is larger than the sum of its proper divisors (1).

557534381 is an equidigital number, since it uses as much as digits as its factorization.

557534381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 41.

The square root of 557534381 is about 23612.1659531691. The cubic root of 557534381 is about 823.0455755236.

The spelling of 557534381 in words is "five hundred fifty-seven million, five hundred thirty-four thousand, three hundred eighty-one".