51102203 has 2 divisors, whose sum is σ = 51102204. Its totient is φ = 51102202.

The previous prime is 51102193. The next prime is 51102209. The reversal of 51102203 is 30220115.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51102203 - 2¹⁰ = 51101179 is a prime.

It is a super-2 number, since 2×51102203² = 5222870302906418, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (51102209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25551101 + 25551102.

It is an arithmetic number, because the mean of its divisors is an integer number (25551102).

Almost surely, 2^51102203 is an apocalyptic number.

51102203 is a deficient number, since it is larger than the sum of its proper divisors (1).

51102203 is an equidigital number, since it uses as much as digits as its factorization.

51102203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 51102203 is about 7148.5804884606. The cubic root of 51102203 is about 371.0905323196.

Adding to 51102203 its reverse (30220115), we get a palindrome (81322318).

The spelling of 51102203 in words is "fifty-one million, one hundred two thousand, two hundred three".