66054029 has 4 divisors (see below), whose sum is σ = 66253920. Its totient is φ = 65854140.

The previous prime is 66054019. The next prime is 66054031. The reversal of 66054029 is 92045066.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92045066 = 2 ⋅46022533.

It is a cyclic number.

It is not a de Polignac number, because 66054029 - 2²⁰ = 65005453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66053986 and 66054004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66054019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99449 + ... + 100110.

It is an arithmetic number, because the mean of its divisors is an integer number (16563480).

Almost surely, 2^66054029 is an apocalyptic number.

It is an amenable number.

66054029 is a deficient number, since it is larger than the sum of its proper divisors (199891).

66054029 is a wasteful number, since it uses less digits than its factorization.

66054029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199890.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 66054029 is about 8127.3629794663. The cubic root of 66054029 is about 404.2342468116.

The spelling of 66054029 in words is "sixty-six million, fifty-four thousand, twenty-nine".