51601003 has 2 divisors, whose sum is σ = 51601004. Its totient is φ = 51601002.

The previous prime is 51600953. The next prime is 51601007. The reversal of 51601003 is 30010615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51601003 - 2¹³ = 51592811 is a prime.

It is not a weakly prime, because it can be changed into another prime (51601007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25800501 + 25800502.

It is an arithmetic number, because the mean of its divisors is an integer number (25800502).

Almost surely, 2^51601003 is an apocalyptic number.

51601003 is a deficient number, since it is larger than the sum of its proper divisors (1).

51601003 is an equidigital number, since it uses as much as digits as its factorization.

51601003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 51601003 is about 7183.3838126610. The cubic root of 51601003 is about 372.2940091966.

Adding to 51601003 its reverse (30010615), we get a palindrome (81611618).

The spelling of 51601003 in words is "fifty-one million, six hundred one thousand, three".