215050487 has 2 divisors, whose sum is σ = 215050488. Its totient is φ = 215050486.

The previous prime is 215050471. The next prime is 215050501. The reversal of 215050487 is 784050512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215050487 - 2⁴ = 215050471 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215050387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107525243 + 107525244.

It is an arithmetic number, because the mean of its divisors is an integer number (107525244).

Almost surely, 2^215050487 is an apocalyptic number.

215050487 is a deficient number, since it is larger than the sum of its proper divisors (1).

215050487 is an equidigital number, since it uses as much as digits as its factorization.

215050487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 215050487 is about 14664.5997899704. The cubic root of 215050487 is about 599.1195298823.

The spelling of 215050487 in words is "two hundred fifteen million, fifty thousand, four hundred eighty-seven".