380504521 has 2 divisors, whose sum is σ = 380504522. Its totient is φ = 380504520.

The previous prime is 380504513. The next prime is 380504533. The reversal of 380504521 is 125405083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 337089600 + 43414921 = 18360^2 + 6589^2 .

It is a cyclic number.

It is not a de Polignac number, because 380504521 - 2³ = 380504513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 380504521.

It is not a weakly prime, because it can be changed into another prime (380504581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190252260 + 190252261.

It is an arithmetic number, because the mean of its divisors is an integer number (190252261).

Almost surely, 2^380504521 is an apocalyptic number.

It is an amenable number.

380504521 is a deficient number, since it is larger than the sum of its proper divisors (1).

380504521 is an equidigital number, since it uses as much as digits as its factorization.

380504521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 380504521 is about 19506.5250877751. The cubic root of 380504521 is about 724.6360573668.

The spelling of 380504521 in words is "three hundred eighty million, five hundred four thousand, five hundred twenty-one".