90250271 has 2 divisors, whose sum is σ = 90250272. Its totient is φ = 90250270.

The previous prime is 90250253. The next prime is 90250309. The reversal of 90250271 is 17205209.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90250271 - 2¹⁴ = 90233887 is a prime.

It is a super-2 number, since 2×90250271² = 16290222831146882, which contains 22 as substring.

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 90250271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90250211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45125135 + 45125136.

It is an arithmetic number, because the mean of its divisors is an integer number (45125136).

Almost surely, 2^90250271 is an apocalyptic number.

90250271 is a deficient number, since it is larger than the sum of its proper divisors (1).

90250271 is an equidigital number, since it uses as much as digits as its factorization.

90250271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 90250271 is about 9500.0142631472. The cubic root of 90250271 is about 448.5554848920. Note that the first 3 decimals are identical.

The spelling of 90250271 in words is "ninety million, two hundred fifty thousand, two hundred seventy-one".