516631441 has 4 divisors (see below), whose sum is σ = 517430592. Its totient is φ = 515832292.

The previous prime is 516631421. The next prime is 516631487. The reversal of 516631441 is 144136615.

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 516631441 - 2⁹ = 516630929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516631421) 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, 398605 + ... + 399898.

It is an arithmetic number, because the mean of its divisors is an integer number (129357648).

Almost surely, 2^516631441 is an apocalyptic number.

It is an amenable number.

516631441 is a deficient number, since it is larger than the sum of its proper divisors (799151).

516631441 is an equidigital number, since it uses as much as digits as its factorization.

516631441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799150.

The product of its digits is 8640, while the sum is 31.

The square root of 516631441 is about 22729.5279537433. The cubic root of 516631441 is about 802.4049717479.

The spelling of 516631441 in words is "five hundred sixteen million, six hundred thirty-one thousand, four hundred forty-one".