51104331503 has 2 divisors, whose sum is σ = 51104331504. Its totient is φ = 51104331502.

The previous prime is 51104331493. The next prime is 51104331527. The reversal of 51104331503 is 30513340115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51104331503 - 2²⁸ = 50835896047 is a prime.

It is a super-2 number, since 2×51104331503² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51104331403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25552165751 + 25552165752.

It is an arithmetic number, because the mean of its divisors is an integer number (25552165752).

Almost surely, 2^51104331503 is an apocalyptic number.

51104331503 is a deficient number, since it is larger than the sum of its proper divisors (1).

51104331503 is an equidigital number, since it uses as much as digits as its factorization.

51104331503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 51104331503 its reverse (30513340115), we get a palindrome (81617671618).

The spelling of 51104331503 in words is "fifty-one billion, one hundred four million, three hundred thirty-one thousand, five hundred three".