54551090966 has 4 divisors (see below), whose sum is σ = 81826636452. Its totient is φ = 27275545482.

The previous prime is 54551090947. The next prime is 54551091013. The reversal of 54551090966 is 66909015545.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66909015545 = 5 ⋅13381803109.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13637772740 + ... + 13637772743.

It is an arithmetic number, because the mean of its divisors is an integer number (20456659113).

Almost surely, 2^54551090966 is an apocalyptic number.

54551090966 is a deficient number, since it is larger than the sum of its proper divisors (27275545486).

54551090966 is a wasteful number, since it uses less digits than its factorization.

54551090966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27275545485.

The product of its (nonzero) digits is 1458000, while the sum is 50.

The spelling of 54551090966 in words is "fifty-four billion, five hundred fifty-one million, ninety thousand, nine hundred sixty-six".