520222352 has 40 divisors (see below), whose sum is σ = 1103887680. Its totient is φ = 236027520.

The previous prime is 520222333. The next prime is 520222361. The reversal of 520222352 is 253222025.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8924 + ... + 33467.

It is an arithmetic number, because the mean of its divisors is an integer number (27597192).

Almost surely, 2^520222352 is an apocalyptic number.

520222352 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

520222352 is an abundant number, since it is smaller than the sum of its proper divisors (583665328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520222352 is a wasteful number, since it uses less digits than its factorization.

520222352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42471 (or 42465 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 520222352 is about 22808.3833710327. The cubic root of 520222352 is about 804.2597528738.

Adding to 520222352 its reverse (253222025), we get a palindrome (773444377).

The spelling of 520222352 in words is "five hundred twenty million, two hundred twenty-two thousand, three hundred fifty-two".