51189067 has 2 divisors, whose sum is σ = 51189068. Its totient is φ = 51189066.

The previous prime is 51189041. The next prime is 51189107. The reversal of 51189067 is 76098115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51189067 - 2¹⁵ = 51156299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51189037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25594533 + 25594534.

It is an arithmetic number, because the mean of its divisors is an integer number (25594534).

Almost surely, 2^51189067 is an apocalyptic number.

51189067 is a deficient number, since it is larger than the sum of its proper divisors (1).

51189067 is an equidigital number, since it uses as much as digits as its factorization.

51189067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 51189067 is about 7154.6535206116. The cubic root of 51189067 is about 371.3006743436.

The spelling of 51189067 in words is "fifty-one million, one hundred eighty-nine thousand, sixty-seven".