520005722 has 8 divisors (see below), whose sum is σ = 780276672. Its totient is φ = 259913500.

The previous prime is 520005719. The next prime is 520005727. The reversal of 520005722 is 227500025.

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

It is not an unprimeable number, because it can be changed into a prime (520005727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37154 + ... + 49197.

It is an arithmetic number, because the mean of its divisors is an integer number (97534584).

Almost surely, 2^520005722 is an apocalyptic number.

520005722 is a deficient number, since it is larger than the sum of its proper divisors (260270950).

520005722 is a wasteful number, since it uses less digits than its factorization.

520005722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89364.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 520005722 is about 22803.6339647873. The cubic root of 520005722 is about 804.1481012702.

Adding to 520005722 its reverse (227500025), we get a palindrome (747505747).

The spelling of 520005722 in words is "five hundred twenty million, five thousand, seven hundred twenty-two".