61066049 has 4 divisors (see below), whose sum is σ = 66617520. Its totient is φ = 55514580.

The previous prime is 61066039. The next prime is 61066067. The reversal of 61066049 is 94066016.

61066049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 61066049 - 2²⁴ = 44288833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61066039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2775719 + ... + 2775740.

It is an arithmetic number, because the mean of its divisors is an integer number (16654380).

Almost surely, 2^61066049 is an apocalyptic number.

It is an amenable number.

61066049 is a deficient number, since it is larger than the sum of its proper divisors (5551471).

61066049 is a wasteful number, since it uses less digits than its factorization.

61066049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551470.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 61066049 is about 7814.4768858830. The cubic root of 61066049 is about 393.7917444950.

The spelling of 61066049 in words is "sixty-one million, sixty-six thousand, forty-nine".