51603155263 has 32 divisors (see below), whose sum is σ = 60412262400. Its totient is φ = 43629331200.

The previous prime is 51603155209. The next prime is 51603155269. The reversal of 51603155263 is 36255130615.

51603155263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51603155263 - 2⁹ = 51603154751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51603155269) 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, 1008270 + ... + 1058212.

It is an arithmetic number, because the mean of its divisors is an integer number (1887883200).

Almost surely, 2^51603155263 is an apocalyptic number.

51603155263 is a deficient number, since it is larger than the sum of its proper divisors (8809107137).

51603155263 is a wasteful number, since it uses less digits than its factorization.

51603155263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50103.

The product of its (nonzero) digits is 81000, while the sum is 37.

Adding to 51603155263 its reverse (36255130615), we get a palindrome (87858285878).

The spelling of 51603155263 in words is "fifty-one billion, six hundred three million, one hundred fifty-five thousand, two hundred sixty-three".