51066131 has 2 divisors, whose sum is σ = 51066132. Its totient is φ = 51066130.

The previous prime is 51066121. The next prime is 51066137. The reversal of 51066131 is 13166015.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51066131 - 2²² = 46871827 is a prime.

It is a super-2 number, since 2×51066131² = 5215499470618322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_3061157 and since 51066131 and 3061157 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 51066097 and 51066106.

It is not a weakly prime, because it can be changed into another prime (51066137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25533065 + 25533066.

It is an arithmetic number, because the mean of its divisors is an integer number (25533066).

Almost surely, 2^51066131 is an apocalyptic number.

51066131 is a deficient number, since it is larger than the sum of its proper divisors (1).

51066131 is an equidigital number, since it uses as much as digits as its factorization.

51066131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 51066131 is about 7146.0570246815. The cubic root of 51066131 is about 371.0031966944.

The spelling of 51066131 in words is "fifty-one million, sixty-six thousand, one hundred thirty-one".