522306497 has 8 divisors (see below), whose sum is σ = 525726600. Its totient is φ = 518897664.

The previous prime is 522306479. The next prime is 522306553. The reversal of 522306497 is 794603225.

It can be written as a sum of positive squares in 4 ways, for example, as 272382016 + 249924481 = 16504^2 + 15809^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 522306497 - 2¹⁰ = 522305473 is a prime.

It is a super-2 number, since 2×522306497² = 545608153616822018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 522306497.

It is not an unprimeable number, because it can be changed into a prime (522309497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102629 + ... + 107597.

It is an arithmetic number, because the mean of its divisors is an integer number (65715825).

Almost surely, 2^522306497 is an apocalyptic number.

It is an amenable number.

522306497 is a deficient number, since it is larger than the sum of its proper divisors (3420103).

522306497 is a wasteful number, since it uses less digits than its factorization.

522306497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5635.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 522306497 is about 22854.0258379131. The cubic root of 522306497 is about 805.3323458290.

The spelling of 522306497 in words is "five hundred twenty-two million, three hundred six thousand, four hundred ninety-seven".