50203072553 has 4 divisors (see below), whose sum is σ = 50720630100. Its totient is φ = 49685515008.

The previous prime is 50203072519. The next prime is 50203072561. The reversal of 50203072553 is 35527030205.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24624827929 + 25578244624 = 156923^2 + 159932^2 .

It is a cyclic number.

It is not a de Polignac number, because 50203072553 - 2¹⁸ = 50202810409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50203072573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258778628 + ... + 258778821.

It is an arithmetic number, because the mean of its divisors is an integer number (12680157525).

Almost surely, 2^50203072553 is an apocalyptic number.

It is an amenable number.

50203072553 is a deficient number, since it is larger than the sum of its proper divisors (517557547).

50203072553 is an equidigital number, since it uses as much as digits as its factorization.

50203072553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517557546.

The product of its (nonzero) digits is 31500, while the sum is 32.

The spelling of 50203072553 in words is "fifty billion, two hundred three million, seventy-two thousand, five hundred fifty-three".