90562 has 4 divisors (see below), whose sum is σ = 135846. Its totient is φ = 45280.

The previous prime is 90547. The next prime is 90583. The reversal of 90562 is 26509.

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

It can be written as a sum of positive squares in only one way, i.e., 62001 + 28561 = 249^2 + 169^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 12.

It is a zygodrome in base 12.

It is an unprimeable number.

90562 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22639 + ... + 22642.

2⁹⁰⁵⁶² is an apocalyptic number.

90562 is a deficient number, since it is larger than the sum of its proper divisors (45284).

90562 is a wasteful number, since it uses less digits than its factorization.

90562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45283.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 90562 is about 300.9352089736. The cubic root of 90562 is about 44.9071335865.

The spelling of 90562 in words is "ninety thousand, five hundred sixty-two".