90448202533 has 4 divisors (see below), whose sum is σ = 97405756588. Its totient is φ = 83490648480.

The previous prime is 90448202519. The next prime is 90448202587. The reversal of 90448202533 is 33520284409.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35714196324 + 54734006209 = 188982^2 + 233953^2 .

It is a cyclic number.

It is not a de Polignac number, because 90448202533 - 2³³ = 81858267941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90448206533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3478777008 + ... + 3478777033.

It is an arithmetic number, because the mean of its divisors is an integer number (24351439147).

Almost surely, 2^90448202533 is an apocalyptic number.

It is an amenable number.

90448202533 is a deficient number, since it is larger than the sum of its proper divisors (6957554055).

90448202533 is a wasteful number, since it uses less digits than its factorization.

90448202533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6957554054.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 90448202533 in words is "ninety billion, four hundred forty-eight million, two hundred two thousand, five hundred thirty-three".