50513122553 has 4 divisors (see below), whose sum is σ = 50562023028. Its totient is φ = 50464222080.

The previous prime is 50513122547. The next prime is 50513122591. The reversal of 50513122553 is 35522131505.

50513122553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 20969356864 + 29543765689 = 144808^2 + 171883^2 .

It is a cyclic number.

It is not a de Polignac number, because 50513122553 - 2¹⁴ = 50513106169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50513128553) 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, 24448688 + ... + 24450753.

It is an arithmetic number, because the mean of its divisors is an integer number (12640505757).

Almost surely, 2^50513122553 is an apocalyptic number.

It is an amenable number.

50513122553 is a deficient number, since it is larger than the sum of its proper divisors (48900475).

50513122553 is a wasteful number, since it uses less digits than its factorization.

50513122553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48900474.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 50513122553 in words is "fifty billion, five hundred thirteen million, one hundred twenty-two thousand, five hundred fifty-three".