520531153 has 4 divisors (see below), whose sum is σ = 520641648. Its totient is φ = 520420660.

The previous prime is 520531129. The next prime is 520531171. The reversal of 520531153 is 351135025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520531153 - 2¹⁷ = 520400081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520571153) 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, 47851 + ... + 57712.

It is an arithmetic number, because the mean of its divisors is an integer number (130160412).

Almost surely, 2^520531153 is an apocalyptic number.

It is an amenable number.

520531153 is a deficient number, since it is larger than the sum of its proper divisors (110495).

520531153 is a wasteful number, since it uses less digits than its factorization.

520531153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110494.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 520531153 is about 22815.1518294312. The cubic root of 520531153 is about 804.4188560536.

Adding to 520531153 its reverse (351135025), we get a palindrome (871666178).

The spelling of 520531153 in words is "five hundred twenty million, five hundred thirty-one thousand, one hundred fifty-three".