90550027 has 2 divisors, whose sum is σ = 90550028. Its totient is φ = 90550026.

The previous prime is 90550001. The next prime is 90550049. The reversal of 90550027 is 72005509.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90550027 - 2²³ = 82161419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90549977 and 90550004.

It is not a weakly prime, because it can be changed into another prime (90550127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45275013 + 45275014.

It is an arithmetic number, because the mean of its divisors is an integer number (45275014).

Almost surely, 2^90550027 is an apocalyptic number.

90550027 is a deficient number, since it is larger than the sum of its proper divisors (1).

90550027 is an equidigital number, since it uses as much as digits as its factorization.

90550027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 90550027 is about 9515.7777926978. Note that the first 4 decimals coincide. The cubic root of 90550027 is about 449.0515447527.

The spelling of 90550027 in words is "ninety million, five hundred fifty thousand, twenty-seven".