512051478 has 16 divisors (see below), whose sum is σ = 1024718016. Its totient is φ = 170581320.

The previous prime is 512051471. The next prime is 512051513. The reversal of 512051478 is 874150215.

It is a super-2 number, since 2×512051478² = 524393432243968968, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512051471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14428 + ... + 35103.

It is an arithmetic number, because the mean of its divisors is an integer number (64044876).

Almost surely, 2^512051478 is an apocalyptic number.

512051478 is an abundant number, since it is smaller than the sum of its proper divisors (512666538).

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

512051478 is a wasteful number, since it uses less digits than its factorization.

512051478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51259.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 512051478 is about 22628.5544832188. The cubic root of 512051478 is about 800.0268105598.

The spelling of 512051478 in words is "five hundred twelve million, fifty-one thousand, four hundred seventy-eight".