522800381 has 2 divisors, whose sum is σ = 522800382. Its totient is φ = 522800380.

The previous prime is 522800351. The next prime is 522800393. The reversal of 522800381 is 183008225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 442429156 + 80371225 = 21034^2 + 8965^2 .

It is a cyclic number.

It is not a de Polignac number, because 522800381 - 2¹⁰ = 522799357 is a prime.

It is a super-2 number, since 2×522800381² = 546640476747490322, 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 (522800351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261400190 + 261400191.

It is an arithmetic number, because the mean of its divisors is an integer number (261400191).

Almost surely, 2^522800381 is an apocalyptic number.

It is an amenable number.

522800381 is a deficient number, since it is larger than the sum of its proper divisors (1).

522800381 is an equidigital number, since it uses as much as digits as its factorization.

522800381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 522800381 is about 22864.8284708195. The cubic root of 522800381 is about 805.5861019810.

The spelling of 522800381 in words is "five hundred twenty-two million, eight hundred thousand, three hundred eighty-one".