27554530657043 has 4 divisors (see below), whose sum is σ = 29674109938368. Its totient is φ = 25434951375720.

The previous prime is 27554530657013. The next prime is 27554530657099. The reversal of 27554530657043 is 34075603545572.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27554530657043 - 2⁸ = 27554530656787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27554530657043.

It is not an unprimeable number, because it can be changed into a prime (27554530657013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1059789640643 + ... + 1059789640668.

It is an arithmetic number, because the mean of its divisors is an integer number (7418527484592).

Almost surely, 2^{27554530657043} is an apocalyptic number.

27554530657043 is a deficient number, since it is larger than the sum of its proper divisors (2119579281325).

27554530657043 is a wasteful number, since it uses less digits than its factorization.

27554530657043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119579281324.

The product of its (nonzero) digits is 52920000, while the sum is 56.

The spelling of 27554530657043 in words is "twenty-seven trillion, five hundred fifty-four billion, five hundred thirty million, six hundred fifty-seven thousand, forty-three".