522405123274 has 4 divisors (see below), whose sum is σ = 783607684914. Its totient is φ = 261202561636.

The previous prime is 522405123269. The next prime is 522405123287. The reversal of 522405123274 is 472321504225.

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., 460371749049 + 62033374225 = 678507^2 + 249065^2 .

It is a super-2 number, since 2×522405123274² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130601280817 + ... + 130601280820.

Almost surely, 2^522405123274 is an apocalyptic number.

522405123274 is a deficient number, since it is larger than the sum of its proper divisors (261202561640).

522405123274 is a wasteful number, since it uses less digits than its factorization.

522405123274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261202561639.

The product of its (nonzero) digits is 134400, while the sum is 37.

Adding to 522405123274 its reverse (472321504225), we get a palindrome (994726627499).

The spelling of 522405123274 in words is "five hundred twenty-two billion, four hundred five million, one hundred twenty-three thousand, two hundred seventy-four".