512055420 has 48 divisors (see below), whose sum is σ = 1444722048. Its totient is φ = 135503680.

The previous prime is 512055403. The next prime is 512055421. The reversal of 512055420 is 24550215.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512055421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24714 + ... + 40433.

It is an arithmetic number, because the mean of its divisors is an integer number (30098376).

Almost surely, 2^512055420 is an apocalyptic number.

It is an amenable number.

512055420 is an abundant number, since it is smaller than the sum of its proper divisors (932666628).

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

512055420 is a wasteful number, since it uses less digits than its factorization.

512055420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65290 (or 65288 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 512055420 is about 22628.6415853891. The cubic root of 512055420 is about 800.0288635419.

The spelling of 512055420 in words is "five hundred twelve million, fifty-five thousand, four hundred twenty".