40000553 has 4 divisors (see below), whose sum is σ = 40019280. Its totient is φ = 39981828.

The previous prime is 40000549. The next prime is 40000561. The reversal of 40000553 is 35500004.

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.

It is a cyclic number.

It is not a de Polignac number, because 40000553 - 2² = 40000549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40000523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5675 + ... + 10592.

It is an arithmetic number, because the mean of its divisors is an integer number (10004820).

Almost surely, 2^40000553 is an apocalyptic number.

It is an amenable number.

40000553 is a deficient number, since it is larger than the sum of its proper divisors (18727).

40000553 is a wasteful number, since it uses less digits than its factorization.

40000553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18726.

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

The square root of 40000553 is about 6324.5990386743. The cubic root of 40000553 is about 341.9967653559.

Adding to 40000553 its reverse (35500004), we get a palindrome (75500557).

The spelling of 40000553 in words is "forty million, five hundred fifty-three", and thus it is an aban number.