512555442 has 32 divisors (see below), whose sum is σ = 1198804992. Its totient is φ = 143038224.

The previous prime is 512555441. The next prime is 512555443. The reversal of 512555442 is 244555215.

It is an interprime number because it is at equal distance from previous prime (512555441) and next prime (512555443).

It is a super-2 number, since 2×512555442² = 525426162247630728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (512555441) 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 15 ways as a sum of consecutive naturals, for example, 140098 + ... + 143709.

It is an arithmetic number, because the mean of its divisors is an integer number (37462656).

Almost surely, 2^512555442 is an apocalyptic number.

512555442 is an abundant number, since it is smaller than the sum of its proper divisors (686249550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512555442 is a wasteful number, since it uses less digits than its factorization.

512555442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283862.

The product of its digits is 40000, while the sum is 33.

The square root of 512555442 is about 22639.6873211624. The cubic root of 512555442 is about 800.2891881585.

The spelling of 512555442 in words is "five hundred twelve million, five hundred fifty-five thousand, four hundred forty-two".