515042442523225 has 96 divisors (see below), whose sum is σ = 655455744147456. Its totient is φ = 401359141497600.

The previous prime is 515042442523223. The next prime is 515042442523249. The reversal of 515042442523225 is 522325244240515.

It is not a de Polignac number, because 515042442523225 - 2¹ = 515042442523223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515042442523223) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 146028476412 + ... + 146028479938.

It is an arithmetic number, because the mean of its divisors is an integer number (6827664001536).

Almost surely, 2^{515042442523225} is an apocalyptic number.

It is an amenable number.

515042442523225 is a deficient number, since it is larger than the sum of its proper divisors (140413301624231).

515042442523225 is a wasteful number, since it uses less digits than its factorization.

515042442523225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6335 (or 6330 counting only the distinct ones).

The product of its (nonzero) digits is 3840000, while the sum is 46.

The spelling of 515042442523225 in words is "five hundred fifteen trillion, forty-two billion, four hundred forty-two million, five hundred twenty-three thousand, two hundred twenty-five".