512500042 has 8 divisors (see below), whose sum is σ = 768852000. Its totient is φ = 256216044.

The previous prime is 512500039. The next prime is 512500057. The reversal of 512500042 is 240005215.

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

It is a junction number, because it is equal to n+sod(n) for n = 512499992 and 512500019.

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, 11259 + ... + 33937.

It is an arithmetic number, because the mean of its divisors is an integer number (96106500).

Almost surely, 2^512500042 is an apocalyptic number.

512500042 is a deficient number, since it is larger than the sum of its proper divisors (256351958).

512500042 is a wasteful number, since it uses less digits than its factorization.

512500042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33980.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 512500042 is about 22638.4637729683. The cubic root of 512500042 is about 800.2603538023.

Adding to 512500042 its reverse (240005215), we get a palindrome (752505257).

The spelling of 512500042 in words is "five hundred twelve million, five hundred thousand, forty-two".