55409667541 has 2 divisors, whose sum is σ = 55409667542. Its totient is φ = 55409667540.

The previous prime is 55409667503. The next prime is 55409667557. The reversal of 55409667541 is 14576690455.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39971605041 + 15438062500 = 199929^2 + 124250^2 .

It is a cyclic number.

It is not a de Polignac number, because 55409667541 - 2¹⁹ = 55409143253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55409667581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27704833770 + 27704833771.

It is an arithmetic number, because the mean of its divisors is an integer number (27704833771).

Almost surely, 2^55409667541 is an apocalyptic number.

It is an amenable number.

55409667541 is a deficient number, since it is larger than the sum of its proper divisors (1).

55409667541 is an equidigital number, since it uses as much as digits as its factorization.

55409667541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 55409667541 in words is "fifty-five billion, four hundred nine million, six hundred sixty-seven thousand, five hundred forty-one".