41555321959 has 2 divisors, whose sum is σ = 41555321960. Its totient is φ = 41555321958.

The previous prime is 41555321953. The next prime is 41555321993. The reversal of 41555321959 is 95912355514.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41555321959 is a prime.

It is a super-2 number, since 2×41555321959² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41555321953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20777660979 + 20777660980.

It is an arithmetic number, because the mean of its divisors is an integer number (20777660980).

Almost surely, 2^41555321959 is an apocalyptic number.

41555321959 is a deficient number, since it is larger than the sum of its proper divisors (1).

41555321959 is an equidigital number, since it uses as much as digits as its factorization.

41555321959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1215000, while the sum is 49.

The spelling of 41555321959 in words is "forty-one billion, five hundred fifty-five million, three hundred twenty-one thousand, nine hundred fifty-nine".