522227642 has 4 divisors (see below), whose sum is σ = 783341466. Its totient is φ = 261113820.

The previous prime is 522227639. The next prime is 522227653. The reversal of 522227642 is 246722225.

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., 426794281 + 95433361 = 20659^2 + 9769^2 .

It is a junction number, because it is equal to n+sod(n) for n = 522227599 and 522227608.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130556909 + ... + 130556912.

Almost surely, 2^522227642 is an apocalyptic number.

522227642 is a deficient number, since it is larger than the sum of its proper divisors (261113824).

522227642 is a wasteful number, since it uses less digits than its factorization.

522227642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261113823.

The product of its digits is 26880, while the sum is 32.

The square root of 522227642 is about 22852.3005844051. The cubic root of 522227642 is about 805.2918155537.

Adding to 522227642 its reverse (246722225), we get a palindrome (768949867).

The spelling of 522227642 in words is "five hundred twenty-two million, two hundred twenty-seven thousand, six hundred forty-two".