520342524 has 72 divisors (see below), whose sum is σ = 1478104992. Its totient is φ = 153141120.

The previous prime is 520342523. The next prime is 520342541. The reversal of 520342524 is 425243025.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520342523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13407 + ... + 34934.

It is an arithmetic number, because the mean of its divisors is an integer number (20529236).

Almost surely, 2^520342524 is an apocalyptic number.

It is an amenable number.

520342524 is an abundant number, since it is smaller than the sum of its proper divisors (957762468).

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

520342524 is a wasteful number, since it uses less digits than its factorization.

520342524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48387 (or 48382 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 520342524 is about 22811.0176011505. The cubic root of 520342524 is about 804.3216764350.

Adding to 520342524 its reverse (425243025), we get a palindrome (945585549).

The spelling of 520342524 in words is "five hundred twenty million, three hundred forty-two thousand, five hundred twenty-four".