516315487 has 2 divisors, whose sum is σ = 516315488. Its totient is φ = 516315486.

The previous prime is 516315473. The next prime is 516315493. The reversal of 516315487 is 784513615.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 516315487 - 2²⁷ = 382097759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516315187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258157743 + 258157744.

It is an arithmetic number, because the mean of its divisors is an integer number (258157744).

Almost surely, 2^516315487 is an apocalyptic number.

516315487 is a deficient number, since it is larger than the sum of its proper divisors (1).

516315487 is an equidigital number, since it uses as much as digits as its factorization.

516315487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 40.

The square root of 516315487 is about 22722.5765924554. The cubic root of 516315487 is about 802.2413639740.

The spelling of 516315487 in words is "five hundred sixteen million, three hundred fifteen thousand, four hundred eighty-seven".