90551927 has 2 divisors, whose sum is σ = 90551928. Its totient is φ = 90551926.

The previous prime is 90551917. The next prime is 90551941. The reversal of 90551927 is 72915509.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90551927 - 2¹⁶ = 90486391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90551917) 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, 45275963 + 45275964.

It is an arithmetic number, because the mean of its divisors is an integer number (45275964).

Almost surely, 2^90551927 is an apocalyptic number.

90551927 is a deficient number, since it is larger than the sum of its proper divisors (1).

90551927 is an equidigital number, since it uses as much as digits as its factorization.

90551927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 38.

The square root of 90551927 is about 9515.8776263674. The cubic root of 90551927 is about 449.0546855284.

The spelling of 90551927 in words is "ninety million, five hundred fifty-one thousand, nine hundred twenty-seven".