7255487 has 2 divisors, whose sum is σ = 7255488. Its totient is φ = 7255486.

The previous prime is 7255477. The next prime is 7255489. The reversal of 7255487 is 7845527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7255487 - 2⁸ = 7255231 is a prime.

Together with 7255489, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7255487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7255489) 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, 3627743 + 3627744.

It is an arithmetic number, because the mean of its divisors is an integer number (3627744).

Almost surely, 2^7255487 is an apocalyptic number.

7255487 is a deficient number, since it is larger than the sum of its proper divisors (1).

7255487 is an equidigital number, since it uses as much as digits as its factorization.

7255487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78400, while the sum is 38.

The square root of 7255487 is about 2693.6011211759. The cubic root of 7255487 is about 193.5926461559.

The spelling of 7255487 in words is "seven million, two hundred fifty-five thousand, four hundred eighty-seven".