51337193 has 2 divisors, whose sum is σ = 51337194. Its totient is φ = 51337192.

The previous prime is 51337159. The next prime is 51337201. The reversal of 51337193 is 39173315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49182169 + 2155024 = 7013^2 + 1468^2 .

It is a cyclic number.

It is not a de Polignac number, because 51337193 - 2⁶ = 51337129 is a prime.

It is not a weakly prime, because it can be changed into another prime (51337103) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25668596 + 25668597.

It is an arithmetic number, because the mean of its divisors is an integer number (25668597).

Almost surely, 2^51337193 is an apocalyptic number.

It is an amenable number.

51337193 is a deficient number, since it is larger than the sum of its proper divisors (1).

51337193 is an equidigital number, since it uses as much as digits as its factorization.

51337193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8505, while the sum is 32.

The square root of 51337193 is about 7164.9977669222. The cubic root of 51337193 is about 371.6584741726.

Adding to 51337193 its sum of digits (32), we get a square (51337225 = 7165²).

The spelling of 51337193 in words is "fifty-one million, three hundred thirty-seven thousand, one hundred ninety-three".