512399056 has 40 divisors (see below), whose sum is σ = 1082708480. Its totient is φ = 233490816.

The previous prime is 512399009. The next prime is 512399101. The reversal of 512399056 is 650993215.

It is a happy number.

It is a super-2 number, since 2×512399056² = 525105585179382272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841 + ... + 32023.

It is an arithmetic number, because the mean of its divisors is an integer number (27067712).

Almost surely, 2^512399056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512399056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541354240).

512399056 is an abundant number, since it is smaller than the sum of its proper divisors (570309424).

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

512399056 is a wasteful number, since it uses less digits than its factorization.

512399056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31283 (or 31277 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 512399056 is about 22636.2332555573. The cubic root of 512399056 is about 800.2077876923.

The spelling of 512399056 in words is "five hundred twelve million, three hundred ninety-nine thousand, fifty-six".