522509674 has 4 divisors (see below), whose sum is σ = 783764514. Its totient is φ = 261254836.

The previous prime is 522509657. The next prime is 522509677. The reversal of 522509674 is 476905225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 326705625 + 195804049 = 18075^2 + 13993^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (522509677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130627417 + ... + 130627420.

Almost surely, 2^522509674 is an apocalyptic number.

522509674 is a deficient number, since it is larger than the sum of its proper divisors (261254840).

522509674 is a wasteful number, since it uses less digits than its factorization.

522509674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261254839.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 522509674 is about 22858.4705087633. The cubic root of 522509674 is about 805.4367569355.

The spelling of 522509674 in words is "five hundred twenty-two million, five hundred nine thousand, six hundred seventy-four".