516630241 has 4 divisors (see below), whose sum is σ = 516759552. Its totient is φ = 516500932.

The previous prime is 516630239. The next prime is 516630259. The reversal of 516630241 is 142036615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 516630241 - 2¹ = 516630239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516630211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58465 + ... + 66718.

It is an arithmetic number, because the mean of its divisors is an integer number (129189888).

Almost surely, 2^516630241 is an apocalyptic number.

It is an amenable number.

516630241 is a deficient number, since it is larger than the sum of its proper divisors (129311).

516630241 is a wasteful number, since it uses less digits than its factorization.

516630241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129310.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 516630241 is about 22729.5015563474. The cubic root of 516630241 is about 802.4043504884.

Adding to 516630241 its reverse (142036615), we get a palindrome (658666856).

The spelling of 516630241 in words is "five hundred sixteen million, six hundred thirty thousand, two hundred forty-one".