512624642 has 4 divisors (see below), whose sum is σ = 768936966. Its totient is φ = 256312320.

The previous prime is 512624641. The next prime is 512624657. The reversal of 512624642 is 246426215.

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., 305235841 + 207388801 = 17471^2 + 14401^2 .

It is a junction number, because it is equal to n+sod(n) for n = 512624599 and 512624608.

It is not an unprimeable number, because it can be changed into a prime (512624641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128156159 + ... + 128156162.

Almost surely, 2^512624642 is an apocalyptic number.

512624642 is a deficient number, since it is larger than the sum of its proper divisors (256312324).

512624642 is a wasteful number, since it uses less digits than its factorization.

512624642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256312323.

The product of its digits is 23040, while the sum is 32.

The square root of 512624642 is about 22641.2155592406. The cubic root of 512624642 is about 800.3252021615.

The spelling of 512624642 in words is "five hundred twelve million, six hundred twenty-four thousand, six hundred forty-two".