520247122 has 8 divisors (see below), whose sum is σ = 780565500. Its totient is φ = 260058624.

The previous prime is 520247111. The next prime is 520247131. The reversal of 520247122 is 221742025.

It can be written as a sum of positive squares in 2 ways, for example, as 400760361 + 119486761 = 20019^2 + 10931^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21747 + ... + 38902.

Almost surely, 2^520247122 is an apocalyptic number.

520247122 is a deficient number, since it is larger than the sum of its proper divisors (260318378).

520247122 is a wasteful number, since it uses less digits than its factorization.

520247122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64940.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 520247122 is about 22808.9263666662. The cubic root of 520247122 is about 804.2725174144.

Adding to 520247122 its reverse (221742025), we get a palindrome (741989147).

The spelling of 520247122 in words is "five hundred twenty million, two hundred forty-seven thousand, one hundred twenty-two".