520217354 has 16 divisors (see below), whose sum is σ = 799951680. Its totient is φ = 253589280.

The previous prime is 520217353. The next prime is 520217387. The reversal of 520217354 is 453712025.

It is a happy number.

It is a super-2 number, since 2×520217354² = 541252190805522632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520217353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43619 + ... + 54249.

It is an arithmetic number, because the mean of its divisors is an integer number (49996980).

Almost surely, 2^520217354 is an apocalyptic number.

520217354 is a deficient number, since it is larger than the sum of its proper divisors (279734326).

520217354 is a wasteful number, since it uses less digits than its factorization.

520217354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11245.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 520217354 is about 22808.2738057925. The cubic root of 520217354 is about 804.2571772424.

Adding to 520217354 its reverse (453712025), we get a palindrome (973929379).

The spelling of 520217354 in words is "five hundred twenty million, two hundred seventeen thousand, three hundred fifty-four".