51480193 has 2 divisors, whose sum is σ = 51480194. Its totient is φ = 51480192.

The previous prime is 51480167. The next prime is 51480197. The reversal of 51480193 is 39108415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33907329 + 17572864 = 5823^2 + 4192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51480193 is a prime.

It is not a weakly prime, because it can be changed into another prime (51480197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25740096 + 25740097.

It is an arithmetic number, because the mean of its divisors is an integer number (25740097).

Almost surely, 2^51480193 is an apocalyptic number.

It is an amenable number.

51480193 is a deficient number, since it is larger than the sum of its proper divisors (1).

51480193 is an equidigital number, since it uses as much as digits as its factorization.

51480193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 51480193 is about 7174.9698954072. The cubic root of 51480193 is about 372.0032397490.

The spelling of 51480193 in words is "fifty-one million, four hundred eighty thousand, one hundred ninety-three".