557180260381 has 2 divisors, whose sum is σ = 557180260382. Its totient is φ = 557180260380.

The previous prime is 557180260367. The next prime is 557180260421. The reversal of 557180260381 is 183062081755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311626315225 + 245553945156 = 558235^2 + 495534^2 .

It is a cyclic number.

It is not a de Polignac number, because 557180260381 - 2¹¹ = 557180258333 is a prime.

It is a super-2 number, since 2×557180260381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557180260331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278590130190 + 278590130191.

It is an arithmetic number, because the mean of its divisors is an integer number (278590130191).

Almost surely, 2^557180260381 is an apocalyptic number.

It is an amenable number.

557180260381 is a deficient number, since it is larger than the sum of its proper divisors (1).

557180260381 is an equidigital number, since it uses as much as digits as its factorization.

557180260381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 46.

The spelling of 557180260381 in words is "five hundred fifty-seven billion, one hundred eighty million, two hundred sixty thousand, three hundred eighty-one".