51066331 has 16 divisors (see below), whose sum is σ = 54190080. Its totient is φ = 48058560.

The previous prime is 51066293. The next prime is 51066341. The reversal of 51066331 is 13366015.

It is a cyclic number.

It is not a de Polignac number, because 51066331 - 2¹⁷ = 50935259 is a prime.

It is a super-2 number, since 2×51066331² = 5215540323603122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51066296 and 51066305.

It is not an unprimeable number, because it can be changed into a prime (51066341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228886 + ... + 229108.

It is an arithmetic number, because the mean of its divisors is an integer number (3386880).

Almost surely, 2^51066331 is an apocalyptic number.

51066331 is a deficient number, since it is larger than the sum of its proper divisors (3123749).

51066331 is a wasteful number, since it uses less digits than its factorization.

51066331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 51066331 is about 7146.0710183989. The cubic root of 51066331 is about 371.0036810372.

The spelling of 51066331 in words is "fifty-one million, sixty-six thousand, three hundred thirty-one".