51235193 has 2 divisors, whose sum is σ = 51235194. Its totient is φ = 51235192.

The previous prime is 51235183. The next prime is 51235201. The reversal of 51235193 is 39153215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51222649 + 12544 = 7157^2 + 112^2 .

It is a cyclic number.

It is not a de Polignac number, because 51235193 - 2²⁴ = 34457977 is a prime.

It is equal to p_3070694 and since 51235193 and 3070694 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (51235133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25617596 + 25617597.

It is an arithmetic number, because the mean of its divisors is an integer number (25617597).

Almost surely, 2^51235193 is an apocalyptic number.

It is an amenable number.

51235193 is a deficient number, since it is larger than the sum of its proper divisors (1).

51235193 is an equidigital number, since it uses as much as digits as its factorization.

51235193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4050, while the sum is 29.

The square root of 51235193 is about 7157.8762911914. The cubic root of 51235193 is about 371.4121660759.

The spelling of 51235193 in words is "fifty-one million, two hundred thirty-five thousand, one hundred ninety-three".