51095147 has 2 divisors, whose sum is σ = 51095148. Its totient is φ = 51095146.

The previous prime is 51095141. The next prime is 51095159. The reversal of 51095147 is 74159015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51095147 - 2⁴ = 51095131 is a prime.

It is a super-2 number, since 2×51095147² = 5221428093903218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51095141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25547573 + 25547574.

It is an arithmetic number, because the mean of its divisors is an integer number (25547574).

Almost surely, 2^51095147 is an apocalyptic number.

51095147 is a deficient number, since it is larger than the sum of its proper divisors (1).

51095147 is an equidigital number, since it uses as much as digits as its factorization.

51095147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 51095147 is about 7148.0869468691. The cubic root of 51095147 is about 371.0734519384.

The spelling of 51095147 in words is "fifty-one million, ninety-five thousand, one hundred forty-seven".