600551381 has 2 divisors, whose sum is σ = 600551382. Its totient is φ = 600551380.

The previous prime is 600551293. The next prime is 600551389. The reversal of 600551381 is 183155006.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342435025 + 258116356 = 18505^2 + 16066^2 .

It is a cyclic number.

It is not a de Polignac number, because 600551381 - 2¹⁸ = 600289237 is a prime.

It is a super-2 number, since 2×600551381² = 721323922442014322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (600551389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300275690 + 300275691.

It is an arithmetic number, because the mean of its divisors is an integer number (300275691).

Almost surely, 2^600551381 is an apocalyptic number.

It is an amenable number.

600551381 is a deficient number, since it is larger than the sum of its proper divisors (1).

600551381 is an equidigital number, since it uses as much as digits as its factorization.

600551381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 600551381 is about 24506.1498608002. The cubic root of 600551381 is about 843.6909488367.

The spelling of 600551381 in words is "six hundred million, five hundred fifty-one thousand, three hundred eighty-one".