520015287442 has 8 divisors (see below), whose sum is σ = 891454778496. Its totient is φ = 222863694612.

The previous prime is 520015287437. The next prime is 520015287523. The reversal of 520015287442 is 244782510025.

It is a happy number.

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

It is a super-3 number, since 3×520015287442³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520015287395 and 520015287404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18571974538 + ... + 18571974565.

It is an arithmetic number, because the mean of its divisors is an integer number (111431847312).

Almost surely, 2^520015287442 is an apocalyptic number.

520015287442 is a deficient number, since it is larger than the sum of its proper divisors (371439491054).

520015287442 is a wasteful number, since it uses less digits than its factorization.

520015287442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37143949112.

The product of its (nonzero) digits is 179200, while the sum is 40.

Adding to 520015287442 its reverse (244782510025), we get a palindrome (764797797467).

The spelling of 520015287442 in words is "five hundred twenty billion, fifteen million, two hundred eighty-seven thousand, four hundred forty-two".