40551420233 has 4 divisors (see below), whose sum is σ = 40551885588. Its totient is φ = 40550954880.

The previous prime is 40551420223. The next prime is 40551420347. The reversal of 40551420233 is 33202415504.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8591992249 + 31959427984 = 92693^2 + 178772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40551420233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40551420196 and 40551420205.

It is not an unprimeable number, because it can be changed into a prime (40551420223) 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, 58508 + ... + 290733.

It is an arithmetic number, because the mean of its divisors is an integer number (10137971397).

Almost surely, 2^40551420233 is an apocalyptic number.

It is an amenable number.

40551420233 is a deficient number, since it is larger than the sum of its proper divisors (465355).

40551420233 is a wasteful number, since it uses less digits than its factorization.

40551420233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465354.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 40551420233 its reverse (33202415504), we get a palindrome (73753835737).

The spelling of 40551420233 in words is "forty billion, five hundred fifty-one million, four hundred twenty thousand, two hundred thirty-three".