40755559 has 4 divisors (see below), whose sum is σ = 43890616. Its totient is φ = 37620504.

The previous prime is 40755553. The next prime is 40755571. The reversal of 40755559 is 95555704.

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

It is a cyclic number.

It is not a de Polignac number, because 40755559 - 2⁹ = 40755047 is a prime.

It is a super-2 number, since 2×40755559² = 3322031178804962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40755553) 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, 1567509 + ... + 1567534.

It is an arithmetic number, because the mean of its divisors is an integer number (10972654).

Almost surely, 2^40755559 is an apocalyptic number.

40755559 is a deficient number, since it is larger than the sum of its proper divisors (3135057).

40755559 is a wasteful number, since it uses less digits than its factorization.

40755559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135056.

The product of its (nonzero) digits is 157500, while the sum is 40.

The square root of 40755559 is about 6384.0080670375. The cubic root of 40755559 is about 344.1350847466.

It can be divided in two parts, 40755 and 559, that added together give a palindrome (41314).

The spelling of 40755559 in words is "forty million, seven hundred fifty-five thousand, five hundred fifty-nine".