90002566 has 8 divisors (see below), whose sum is σ = 135051984. Its totient is φ = 44985240.

The previous prime is 90002557. The next prime is 90002597. The reversal of 90002566 is 66520009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×90002566³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1036 + ... + 13456.

It is an arithmetic number, because the mean of its divisors is an integer number (16881498).

Almost surely, 2^90002566 is an apocalyptic number.

90002566 is a deficient number, since it is larger than the sum of its proper divisors (45049418).

90002566 is a wasteful number, since it uses less digits than its factorization.

90002566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16046.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 90002566 is about 9486.9682196158. The cubic root of 90002566 is about 448.1447336095.

The spelling of 90002566 in words is "ninety million, two thousand, five hundred sixty-six".