51066061 has 4 divisors (see below), whose sum is σ = 51561952. Its totient is φ = 50570172.

The previous prime is 51066047. The next prime is 51066097. The reversal of 51066061 is 16066015.

51066061 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 a cyclic number.

It is not a de Polignac number, because 51066061 - 2⁷ = 51065933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51066161) 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, 247791 + ... + 247996.

It is an arithmetic number, because the mean of its divisors is an integer number (12890488).

Almost surely, 2^51066061 is an apocalyptic number.

It is an amenable number.

51066061 is a deficient number, since it is larger than the sum of its proper divisors (495891).

51066061 is a wasteful number, since it uses less digits than its factorization.

51066061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495890.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 51066061 is about 7146.0521268740. The cubic root of 51066061 is about 371.0030271741.

The spelling of 51066061 in words is "fifty-one million, sixty-six thousand, sixty-one".