522400873 has 2 divisors, whose sum is σ = 522400874. Its totient is φ = 522400872.

The previous prime is 522400847. The next prime is 522400981. The reversal of 522400873 is 378004225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275659609 + 246741264 = 16603^2 + 15708^2 .

It is a cyclic number.

It is not a de Polignac number, because 522400873 - 2⁵ = 522400841 is a prime.

It is a super-2 number, since 2×522400873² = 545805344222324258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (522400843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261200436 + 261200437.

It is an arithmetic number, because the mean of its divisors is an integer number (261200437).

Almost surely, 2^522400873 is an apocalyptic number.

It is an amenable number.

522400873 is a deficient number, since it is larger than the sum of its proper divisors (1).

522400873 is an equidigital number, since it uses as much as digits as its factorization.

522400873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 522400873 is about 22856.0905012209. The cubic root of 522400873 is about 805.3808483006.

The spelling of 522400873 in words is "five hundred twenty-two million, four hundred thousand, eight hundred seventy-three".