516895521 has 8 divisors (see below), whose sum is σ = 689329344. Its totient is φ = 344529360.

The previous prime is 516895481. The next prime is 516895541. The reversal of 516895521 is 125598615.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 516895521 - 2²³ = 508506913 is a prime.

It is a super-2 number, since 2×516895521² = 534361959259722882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (516895541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4951 + ... + 32531.

It is an arithmetic number, because the mean of its divisors is an integer number (86166168).

Almost surely, 2^516895521 is an apocalyptic number.

It is an amenable number.

516895521 is a deficient number, since it is larger than the sum of its proper divisors (172433823).

516895521 is a wasteful number, since it uses less digits than its factorization.

516895521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33831.

The product of its digits is 108000, while the sum is 42.

The square root of 516895521 is about 22735.3363951361. The cubic root of 516895521 is about 802.5416668809.

The spelling of 516895521 in words is "five hundred sixteen million, eight hundred ninety-five thousand, five hundred twenty-one".