61066775 has 24 divisors (see below), whose sum is σ = 94410624. Its totient is φ = 38066400.

The previous prime is 61066769. The next prime is 61066777. The reversal of 61066775 is 57766016.

It is not a de Polignac number, because 61066775 - 2¹² = 61062679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61066777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13937 + ... + 17786.

It is an arithmetic number, because the mean of its divisors is an integer number (3933776).

Almost surely, 2^61066775 is an apocalyptic number.

61066775 is a deficient number, since it is larger than the sum of its proper divisors (33343849).

61066775 is a wasteful number, since it uses less digits than its factorization.

61066775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31751 (or 31746 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 61066775 is about 7814.5233379906. The cubic root of 61066775 is about 393.7933050548.

The spelling of 61066775 in words is "sixty-one million, sixty-six thousand, seven hundred seventy-five".