520622461 has 8 divisors (see below), whose sum is σ = 526198400. Its totient is φ = 515056752.

The previous prime is 520622447. The next prime is 520622497. The reversal of 520622461 is 164226025.

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

It is a cyclic number.

It is not a de Polignac number, because 520622461 - 2²³ = 512233853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520622441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142291 + ... + 145903.

It is an arithmetic number, because the mean of its divisors is an integer number (65774800).

Almost surely, 2^520622461 is an apocalyptic number.

It is an amenable number.

520622461 is a deficient number, since it is larger than the sum of its proper divisors (5575939).

520622461 is a wasteful number, since it uses less digits than its factorization.

520622461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5115.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 520622461 is about 22817.1527803098. The cubic root of 520622461 is about 804.4658885141.

Adding to 520622461 its reverse (164226025), we get a palindrome (684848486).

The spelling of 520622461 in words is "five hundred twenty million, six hundred twenty-two thousand, four hundred sixty-one".