516171028 has 24 divisors (see below), whose sum is σ = 932978088. Its totient is φ = 249739776.

The previous prime is 516171013. The next prime is 516171031. The reversal of 516171028 is 820171615.

It can be written as a sum of positive squares in 4 ways, for example, as 47361924 + 468809104 = 6882^2 + 21652^2 .

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, 1201 + ... + 32152.

It is an arithmetic number, because the mean of its divisors is an integer number (38874087).

Almost surely, 2^516171028 is an apocalyptic number.

It is an amenable number.

516171028 is a deficient number, since it is larger than the sum of its proper divisors (416807060).

516171028 is a wasteful number, since it uses less digits than its factorization.

516171028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33483 (or 33481 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 516171028 is about 22719.3976152538. The cubic root of 516171028 is about 802.1665377627.

The spelling of 516171028 in words is "five hundred sixteen million, one hundred seventy-one thousand, twenty-eight".