554345381 has 2 divisors, whose sum is σ = 554345382. Its totient is φ = 554345380.

The previous prime is 554345357. The next prime is 554345399. The reversal of 554345381 is 183543455.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 545642881 + 8702500 = 23359^2 + 2950^2 .

It is a cyclic number.

It is not a de Polignac number, because 554345381 - 2¹⁸ = 554083237 is a prime.

It is a super-2 number, since 2×554345381² = 614597602872070322, 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 (554348381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277172690 + 277172691.

It is an arithmetic number, because the mean of its divisors is an integer number (277172691).

Almost surely, 2^554345381 is an apocalyptic number.

It is an amenable number.

554345381 is a deficient number, since it is larger than the sum of its proper divisors (1).

554345381 is an equidigital number, since it uses as much as digits as its factorization.

554345381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144000, while the sum is 38.

The square root of 554345381 is about 23544.5403650188. The cubic root of 554345381 is about 821.4733480793.

The spelling of 554345381 in words is "five hundred fifty-four million, three hundred forty-five thousand, three hundred eighty-one".