55452400243489 has 2 divisors, whose sum is σ = 55452400243490. Its totient is φ = 55452400243488.

The previous prime is 55452400243483. The next prime is 55452400243511. The reversal of 55452400243489 is 98434200425455.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41716355792400 + 13736044451089 = 6458820^2 + 3706217^2 .

It is a cyclic number.

It is not a de Polignac number, because 55452400243489 - 2⁹ = 55452400242977 is a prime.

It is a super-4 number, since 4×55452400243489⁴ (a number of 56 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (55452400243483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27726200121744 + 27726200121745.

It is an arithmetic number, because the mean of its divisors is an integer number (27726200121745).

Almost surely, 2^{55452400243489} is an apocalyptic number.

It is an amenable number.

55452400243489 is a deficient number, since it is larger than the sum of its proper divisors (1).

55452400243489 is an equidigital number, since it uses as much as digits as its factorization.

55452400243489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648000, while the sum is 55.

The spelling of 55452400243489 in words is "fifty-five trillion, four hundred fifty-two billion, four hundred million, two hundred forty-three thousand, four hundred eighty-nine".