512355425042 has 4 divisors (see below), whose sum is σ = 768533137566. Its totient is φ = 256177712520.

The previous prime is 512355425041. The next prime is 512355425051. The reversal of 512355425042 is 240524553215.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 511569688081 + 785736961 = 715241^2 + 28031^2 .

It is a junction number, because it is equal to n+sod(n) for n = 512355424987 and 512355425005.

It is not an unprimeable number, because it can be changed into a prime (512355425041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128088856259 + ... + 128088856262.

Almost surely, 2^512355425042 is an apocalyptic number.

512355425042 is a deficient number, since it is larger than the sum of its proper divisors (256177712524).

512355425042 is a wasteful number, since it uses less digits than its factorization.

512355425042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256177712523.

The product of its (nonzero) digits is 240000, while the sum is 38.

Adding to 512355425042 its reverse (240524553215), we get a palindrome (752879978257).

The spelling of 512355425042 in words is "five hundred twelve billion, three hundred fifty-five million, four hundred twenty-five thousand, forty-two".