55354237141691 has 2 divisors, whose sum is σ = 55354237141692. Its totient is φ = 55354237141690.

The previous prime is 55354237141649. The next prime is 55354237141703. The reversal of 55354237141691 is 19614173245355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55354237141691 - 2⁶ = 55354237141627 is a prime.

It is a super-2 number, since 2×55354237141691² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (55354237141631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27677118570845 + 27677118570846.

It is an arithmetic number, because the mean of its divisors is an integer number (27677118570846).

Almost surely, 2^{55354237141691} is an apocalyptic number.

55354237141691 is a deficient number, since it is larger than the sum of its proper divisors (1).

55354237141691 is an equidigital number, since it uses as much as digits as its factorization.

55354237141691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608000, while the sum is 56.

The spelling of 55354237141691 in words is "fifty-five trillion, three hundred fifty-four billion, two hundred thirty-seven million, one hundred forty-one thousand, six hundred ninety-one".