51101597 has 2 divisors, whose sum is σ = 51101598. Its totient is φ = 51101596.

The previous prime is 51101581. The next prime is 51101647. The reversal of 51101597 is 79510115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28955161 + 22146436 = 5381^2 + 4706^2 .

It is a cyclic number.

It is not a de Polignac number, because 51101597 - 2⁴ = 51101581 is a prime.

It is a super-2 number, since 2×51101597² = 5222746431900818, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51101527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25550798 + 25550799.

It is an arithmetic number, because the mean of its divisors is an integer number (25550799).

Almost surely, 2^51101597 is an apocalyptic number.

It is an amenable number.

51101597 is a deficient number, since it is larger than the sum of its proper divisors (1).

51101597 is an equidigital number, since it uses as much as digits as its factorization.

51101597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1575, while the sum is 29.

The square root of 51101597 is about 7148.5381022976. The cubic root of 51101597 is about 371.0890654438.

The spelling of 51101597 in words is "fifty-one million, one hundred one thousand, five hundred ninety-seven".