520222461 has 16 divisors (see below), whose sum is σ = 772789248. Its totient is φ = 308577200.

The previous prime is 520222459. The next prime is 520222481. The reversal of 520222461 is 164222025.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 520222461 - 2¹ = 520222459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520222481) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 166155 + ... + 169256.

It is an arithmetic number, because the mean of its divisors is an integer number (48299328).

Almost surely, 2^520222461 is an apocalyptic number.

It is an amenable number.

520222461 is a deficient number, since it is larger than the sum of its proper divisors (252566787).

520222461 is a wasteful number, since it uses less digits than its factorization.

520222461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335472.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 520222461 is about 22808.3857605048. The cubic root of 520222461 is about 804.2598090449.

Adding to 520222461 its reverse (164222025), we get a palindrome (684444486).

The spelling of 520222461 in words is "five hundred twenty million, two hundred twenty-two thousand, four hundred sixty-one".