51133193 has 2 divisors, whose sum is σ = 51133194. Its totient is φ = 51133192.

The previous prime is 51133171. The next prime is 51133213. The reversal of 51133193 is 39133115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41628304 + 9504889 = 6452^2 + 3083^2 .

It is a cyclic number.

It is not a de Polignac number, because 51133193 - 2¹⁶ = 51067657 is a prime.

It is a super-2 number, since 2×51133193² = 5229206852750498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51130193) 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, 25566596 + 25566597.

It is an arithmetic number, because the mean of its divisors is an integer number (25566597).

Almost surely, 2^51133193 is an apocalyptic number.

It is an amenable number.

51133193 is a deficient number, since it is larger than the sum of its proper divisors (1).

51133193 is an equidigital number, since it uses as much as digits as its factorization.

51133193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1215, while the sum is 26.

The square root of 51133193 is about 7150.7477231406. The cubic root of 51133193 is about 371.1655308587.

The spelling of 51133193 in words is "fifty-one million, one hundred thirty-three thousand, one hundred ninety-three".