51167461 has 2 divisors, whose sum is σ = 51167462. Its totient is φ = 51167460.

The previous prime is 51167449. The next prime is 51167483. The reversal of 51167461 is 16476115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48860100 + 2307361 = 6990^2 + 1519^2 .

It is a cyclic number.

It is not a de Polignac number, because 51167461 - 2⁹ = 51166949 is a prime.

It is a super-3 number, since 3×51167461³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51167261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25583730 + 25583731.

It is an arithmetic number, because the mean of its divisors is an integer number (25583731).

Almost surely, 2^51167461 is an apocalyptic number.

It is an amenable number.

51167461 is a deficient number, since it is larger than the sum of its proper divisors (1).

51167461 is an equidigital number, since it uses as much as digits as its factorization.

51167461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 31.

The square root of 51167461 is about 7153.1434348823. The cubic root of 51167461 is about 371.2484271757.

The spelling of 51167461 in words is "fifty-one million, one hundred sixty-seven thousand, four hundred sixty-one".