90250063 has 2 divisors, whose sum is σ = 90250064. Its totient is φ = 90250062.

The previous prime is 90250051. The next prime is 90250073. The reversal of 90250063 is 36005209.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90250063 - 2⁵ = 90250031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90250073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45125031 + 45125032.

It is an arithmetic number, because the mean of its divisors is an integer number (45125032).

Almost surely, 2^90250063 is an apocalyptic number.

90250063 is a deficient number, since it is larger than the sum of its proper divisors (1).

90250063 is an equidigital number, since it uses as much as digits as its factorization.

90250063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 90250063 is about 9500.0033157889. The cubic root of 90250063 is about 448.5551402961. Note that the first 3 decimals are identical.

The spelling of 90250063 in words is "ninety million, two hundred fifty thousand, sixty-three".