51403206603 has 16 divisors (see below), whose sum is σ = 78455256320. Its totient is φ = 29325800736.

The previous prime is 51403206601. The next prime is 51403206661. The reversal of 51403206603 is 30660230415.

It is not a de Polignac number, because 51403206603 - 2¹ = 51403206601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51403206601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1964200 + ... + 1990197.

It is an arithmetic number, because the mean of its divisors is an integer number (4903453520).

Almost surely, 2^51403206603 is an apocalyptic number.

51403206603 is a deficient number, since it is larger than the sum of its proper divisors (27052049717).

51403206603 is a wasteful number, since it uses less digits than its factorization.

51403206603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955026.

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 51403206603 in words is "fifty-one billion, four hundred three million, two hundred six thousand, six hundred three".