51604093 has 2 divisors, whose sum is σ = 51604094. Its totient is φ = 51604092.

The previous prime is 51604087. The next prime is 51604103. The reversal of 51604093 is 39040615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50168889 + 1435204 = 7083^2 + 1198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51604093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51604043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25802046 + 25802047.

It is an arithmetic number, because the mean of its divisors is an integer number (25802047).

Almost surely, 2^51604093 is an apocalyptic number.

It is an amenable number.

51604093 is a deficient number, since it is larger than the sum of its proper divisors (1).

51604093 is an equidigital number, since it uses as much as digits as its factorization.

51604093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 51604093 is about 7183.5988891363. The cubic root of 51604093 is about 372.3014403540.

The spelling of 51604093 in words is "fifty-one million, six hundred four thousand, ninety-three".