51250097 has 2 divisors, whose sum is σ = 51250098. Its totient is φ = 51250096.

The previous prime is 51250091. The next prime is 51250117. The reversal of 51250097 is 79005215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45104656 + 6145441 = 6716^2 + 2479^2 .

It is a cyclic number.

It is not a de Polignac number, because 51250097 - 2⁴ = 51250081 is a prime.

It is not a weakly prime, because it can be changed into another prime (51250091) 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, 25625048 + 25625049.

It is an arithmetic number, because the mean of its divisors is an integer number (25625049).

Almost surely, 2^51250097 is an apocalyptic number.

It is an amenable number.

51250097 is a deficient number, since it is larger than the sum of its proper divisors (1).

51250097 is an equidigital number, since it uses as much as digits as its factorization.

51250097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 51250097 is about 7158.9173064088. The cubic root of 51250097 is about 371.4481764166.

The spelling of 51250097 in words is "fifty-one million, two hundred fifty thousand, ninety-seven".