55066801 has 4 divisors (see below), whose sum is σ = 55581552. Its totient is φ = 54552052.

The previous prime is 55066799. The next prime is 55066829. The reversal of 55066801 is 10866055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55066801 - 2¹ = 55066799 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55066001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257215 + ... + 257428.

It is an arithmetic number, because the mean of its divisors is an integer number (13895388).

Almost surely, 2^55066801 is an apocalyptic number.

It is an amenable number.

55066801 is a deficient number, since it is larger than the sum of its proper divisors (514751).

55066801 is a wasteful number, since it uses less digits than its factorization.

55066801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514750.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 55066801 is about 7420.7008429123. The cubic root of 55066801 is about 380.4491480440.

The spelling of 55066801 in words is "fifty-five million, sixty-six thousand, eight hundred one".