515420425041 has 4 divisors (see below), whose sum is σ = 687227233392. Its totient is φ = 343613616692.

The previous prime is 515420425021. The next prime is 515420425049. The reversal of 515420425041 is 140524024515.

It is a happy number.

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 515420425041 - 2²² = 515416230737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 515420424993 and 515420425011.

It is not an unprimeable number, because it can be changed into a prime (515420425049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85903404171 + ... + 85903404176.

It is an arithmetic number, because the mean of its divisors is an integer number (171806808348).

Almost surely, 2^515420425041 is an apocalyptic number.

It is an amenable number.

515420425041 is a deficient number, since it is larger than the sum of its proper divisors (171806808351).

515420425041 is a wasteful number, since it uses less digits than its factorization.

515420425041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171806808350.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 515420425041 its reverse (140524024515), we get a palindrome (655944449556).

The spelling of 515420425041 in words is "five hundred fifteen billion, four hundred twenty million, four hundred twenty-five thousand, forty-one".