90548573 has 4 divisors (see below), whose sum is σ = 90572700. Its totient is φ = 90524448.

The previous prime is 90548519. The next prime is 90548581. The reversal of 90548573 is 37584509.

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 79512889 + 11035684 = 8917^2 + 3322^2 .

It is a cyclic number.

It is not a de Polignac number, because 90548573 - 2¹² = 90544477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90548573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90548503) 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, 5090 + ... + 14387.

It is an arithmetic number, because the mean of its divisors is an integer number (22643175).

Almost surely, 2^90548573 is an apocalyptic number.

It is an amenable number.

90548573 is a deficient number, since it is larger than the sum of its proper divisors (24127).

90548573 is a wasteful number, since it uses less digits than its factorization.

90548573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24126.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 90548573 is about 9515.7013929610. The cubic root of 90548573 is about 449.0491412031.

The spelling of 90548573 in words is "ninety million, five hundred forty-eight thousand, five hundred seventy-three".