90925567 has 2 divisors, whose sum is σ = 90925568. Its totient is φ = 90925566.

The previous prime is 90925501. The next prime is 90925579. The reversal of 90925567 is 76552909.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90925567 - 2¹⁹ = 90401279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90925067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45462783 + 45462784.

It is an arithmetic number, because the mean of its divisors is an integer number (45462784).

Almost surely, 2^90925567 is an apocalyptic number.

90925567 is a deficient number, since it is larger than the sum of its proper divisors (1).

90925567 is an equidigital number, since it uses as much as digits as its factorization.

90925567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 90925567 is about 9535.4898668081. The cubic root of 90925567 is about 449.6714754438.

The spelling of 90925567 in words is "ninety million, nine hundred twenty-five thousand, five hundred sixty-seven".