55474921811 has 8 divisors (see below), whose sum is σ = 55602016704. Its totient is φ = 55347929320.

The previous prime is 55474921757. The next prime is 55474921877. The reversal of 55474921811 is 11812947455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55474921811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55474924811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116896 + ... + 1165506.

It is an arithmetic number, because the mean of its divisors is an integer number (6950252088).

Almost surely, 2^55474921811 is an apocalyptic number.

55474921811 is a deficient number, since it is larger than the sum of its proper divisors (127094893).

55474921811 is a wasteful number, since it uses less digits than its factorization.

55474921811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51201.

The product of its digits is 403200, while the sum is 47.

The spelling of 55474921811 in words is "fifty-five billion, four hundred seventy-four million, nine hundred twenty-one thousand, eight hundred eleven".