55241440039 has 2 divisors, whose sum is σ = 55241440040. Its totient is φ = 55241440038.

The previous prime is 55241440027. The next prime is 55241440057. The reversal of 55241440039 is 93004414255.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55241440039 - 2²³ = 55233051431 is a prime.

It is a super-3 number, since 3×55241440039³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55241440069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27620720019 + 27620720020.

It is an arithmetic number, because the mean of its divisors is an integer number (27620720020).

Almost surely, 2^55241440039 is an apocalyptic number.

55241440039 is a deficient number, since it is larger than the sum of its proper divisors (1).

55241440039 is an equidigital number, since it uses as much as digits as its factorization.

55241440039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 55241440039 in words is "fifty-five billion, two hundred forty-one million, four hundred forty thousand, thirty-nine".