51603262503353 has 32 divisors (see below), whose sum is σ = 64202201648640. Its totient is φ = 40855946261760.

The previous prime is 51603262503349. The next prime is 51603262503409. The reversal of 51603262503353 is 35330526230615.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51603262503353 - 2² = 51603262503349 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51603262503323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168729275 + ... + 169034832.

It is an arithmetic number, because the mean of its divisors is an integer number (2006318801520).

Almost surely, 2^{51603262503353} is an apocalyptic number.

It is an amenable number.

51603262503353 is a deficient number, since it is larger than the sum of its proper divisors (12598939145287).

51603262503353 is a wasteful number, since it uses less digits than its factorization.

51603262503353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337764197.

The product of its (nonzero) digits is 1458000, while the sum is 44.

Adding to 51603262503353 its reverse (35330526230615), we get a palindrome (86933788733968).

The spelling of 51603262503353 in words is "fifty-one trillion, six hundred three billion, two hundred sixty-two million, five hundred three thousand, three hundred fifty-three".