516525540 has 24 divisors (see below), whose sum is σ = 1446271680. Its totient is φ = 137740128.

The previous prime is 516525523. The next prime is 516525571. The reversal of 516525540 is 45525615.

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, 4304320 + ... + 4304439.

It is an arithmetic number, because the mean of its divisors is an integer number (60261320).

Almost surely, 2^516525540 is an apocalyptic number.

It is an amenable number.

516525540 is an abundant number, since it is smaller than the sum of its proper divisors (929746140).

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

516525540 is a wasteful number, since it uses less digits than its factorization.

516525540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8608771 (or 8608769 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 516525540 is about 22727.1982435143. The cubic root of 516525540 is about 802.3501413672.

The spelling of 516525540 in words is "five hundred sixteen million, five hundred twenty-five thousand, five hundred forty".