51303203053 has 2 divisors, whose sum is σ = 51303203054. Its totient is φ = 51303203052.

The previous prime is 51303203033. The next prime is 51303203057. The reversal of 51303203053 is 35030230315.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40257613449 + 11045589604 = 200643^2 + 105098^2 .

It is a cyclic number.

It is not a de Polignac number, because 51303203053 - 2¹³ = 51303194861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51303203057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25651601526 + 25651601527.

It is an arithmetic number, because the mean of its divisors is an integer number (25651601527).

Almost surely, 2^51303203053 is an apocalyptic number.

It is an amenable number.

51303203053 is a deficient number, since it is larger than the sum of its proper divisors (1).

51303203053 is an equidigital number, since it uses as much as digits as its factorization.

51303203053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 25.

Adding to 51303203053 its reverse (35030230315), we get a palindrome (86333433368).

The spelling of 51303203053 in words is "fifty-one billion, three hundred three million, two hundred three thousand, fifty-three".