66056054 has 4 divisors (see below), whose sum is σ = 99084084. Its totient is φ = 33028026.

The previous prime is 66056051. The next prime is 66056077. The reversal of 66056054 is 45065066.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45065066 = 2 ⋅22532533.

It is a self number, because there is not a number n which added to its sum of digits gives 66056054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66056051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16514012 + ... + 16514015.

It is an arithmetic number, because the mean of its divisors is an integer number (24771021).

Almost surely, 2^66056054 is an apocalyptic number.

66056054 is a deficient number, since it is larger than the sum of its proper divisors (33028030).

66056054 is a wasteful number, since it uses less digits than its factorization.

66056054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33028029.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 66056054 is about 8127.4875576650. The cubic root of 66056054 is about 404.2383776017.

The spelling of 66056054 in words is "sixty-six million, fifty-six thousand, fifty-four", and thus it is an eban number.