522630379 has 2 divisors, whose sum is σ = 522630380. Its totient is φ = 522630378.

The previous prime is 522630347. The next prime is 522630413. The reversal of 522630379 is 973036225.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 522630379 - 2⁵ = 522630347 is a prime.

It is not a weakly prime, because it can be changed into another prime (522630179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261315189 + 261315190.

It is an arithmetic number, because the mean of its divisors is an integer number (261315190).

Almost surely, 2^522630379 is an apocalyptic number.

522630379 is a deficient number, since it is larger than the sum of its proper divisors (1).

522630379 is an equidigital number, since it uses as much as digits as its factorization.

522630379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 522630379 is about 22861.1106248144. The cubic root of 522630379 is about 805.4987734960.

The spelling of 522630379 in words is "five hundred twenty-two million, six hundred thirty thousand, three hundred seventy-nine".