51599161 has 2 divisors, whose sum is σ = 51599162. Its totient is φ = 51599160.

The previous prime is 51599137. The next prime is 51599167. The reversal of 51599161 is 16199515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51566761 + 32400 = 7181^2 + 180^2 .

It is a cyclic number.

It is not a de Polignac number, because 51599161 - 2⁹ = 51598649 is a prime.

It is a super-3 number, since 3×51599161³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51599161.

It is not a weakly prime, because it can be changed into another prime (51599167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25799580 + 25799581.

It is an arithmetic number, because the mean of its divisors is an integer number (25799581).

Almost surely, 2^51599161 is an apocalyptic number.

It is an amenable number.

51599161 is a deficient number, since it is larger than the sum of its proper divisors (1).

51599161 is an equidigital number, since it uses as much as digits as its factorization.

51599161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12150, while the sum is 37.

The square root of 51599161 is about 7183.2555989607. The cubic root of 51599161 is about 372.2895792199.

The spelling of 51599161 in words is "fifty-one million, five hundred ninety-nine thousand, one hundred sixty-one".