380465551 has 2 divisors, whose sum is σ = 380465552. Its totient is φ = 380465550.

The previous prime is 380465539. The next prime is 380465621. The reversal of 380465551 is 155564083.

It is a weak prime.

It is an emirp because it is prime and its reverse (155564083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 380465551 - 2⁹ = 380465039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 380465551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380465251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190232775 + 190232776.

It is an arithmetic number, because the mean of its divisors is an integer number (190232776).

Almost surely, 2^380465551 is an apocalyptic number.

380465551 is a deficient number, since it is larger than the sum of its proper divisors (1).

380465551 is an equidigital number, since it uses as much as digits as its factorization.

380465551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 380465551 is about 19505.5261656793. The cubic root of 380465551 is about 724.6113182553.

The spelling of 380465551 in words is "three hundred eighty million, four hundred sixty-five thousand, five hundred fifty-one".