40553 has 4 divisors (see below), whose sum is σ = 41040. Its totient is φ = 40068.

The previous prime is 40543. The next prime is 40559. The reversal of 40553 is 35504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40553 - 2¹² = 36457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40559) 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, 83 + ... + 296.

It is an arithmetic number, because the mean of its divisors is an integer number (10260).

2⁴⁰⁵⁵³ is an apocalyptic number.

It is an amenable number.

40553 is a deficient number, since it is larger than the sum of its proper divisors (487).

40553 is a wasteful number, since it uses less digits than its factorization.

40553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 40553 is about 201.3777544815. The cubic root of 40553 is about 34.3564009578.

The spelling of 40553 in words is "forty thousand, five hundred fifty-three".