51235291 has 2 divisors, whose sum is σ = 51235292. Its totient is φ = 51235290.

The previous prime is 51235271. The next prime is 51235309. The reversal of 51235291 is 19253215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51235291 - 2¹⁷ = 51104219 is a prime.

It is not a weakly prime, because it can be changed into another prime (51235201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25617645 + 25617646.

It is an arithmetic number, because the mean of its divisors is an integer number (25617646).

Almost surely, 2^51235291 is an apocalyptic number.

51235291 is a deficient number, since it is larger than the sum of its proper divisors (1).

51235291 is an equidigital number, since it uses as much as digits as its factorization.

51235291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 28.

The square root of 51235291 is about 7157.8831367940. The cubic root of 51235291 is about 371.4124028817.

The spelling of 51235291 in words is "fifty-one million, two hundred thirty-five thousand, two hundred ninety-one".