75285487 has 2 divisors, whose sum is σ = 75285488. Its totient is φ = 75285486.

The previous prime is 75285461. The next prime is 75285517. The reversal of 75285487 is 78458257.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75285487 - 2⁷ = 75285359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75225487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37642743 + 37642744.

It is an arithmetic number, because the mean of its divisors is an integer number (37642744).

Almost surely, 2^75285487 is an apocalyptic number.

75285487 is a deficient number, since it is larger than the sum of its proper divisors (1).

75285487 is an equidigital number, since it uses as much as digits as its factorization.

75285487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 627200, while the sum is 46.

The square root of 75285487 is about 8676.7209820300. The cubic root of 75285487 is about 422.2507419511.

The spelling of 75285487 in words is "seventy-five million, two hundred eighty-five thousand, four hundred eighty-seven".