51159673 has 2 divisors, whose sum is σ = 51159674. Its totient is φ = 51159672.

The previous prime is 51159649. The next prime is 51159701. The reversal of 51159673 is 37695115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27071209 + 24088464 = 5203^2 + 4908^2 .

It is a cyclic number.

It is not a de Polignac number, because 51159673 - 2²¹ = 49062521 is a prime.

It is not a weakly prime, because it can be changed into another prime (51159473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25579836 + 25579837.

It is an arithmetic number, because the mean of its divisors is an integer number (25579837).

Almost surely, 2^51159673 is an apocalyptic number.

It is an amenable number.

51159673 is a deficient number, since it is larger than the sum of its proper divisors (1).

51159673 is an equidigital number, since it uses as much as digits as its factorization.

51159673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28350, while the sum is 37.

The square root of 51159673 is about 7152.5990381120. The cubic root of 51159673 is about 371.2295907942.

The spelling of 51159673 in words is "fifty-one million, one hundred fifty-nine thousand, six hundred seventy-three".