50511551253 has 4 divisors (see below), whose sum is σ = 67348735008. Its totient is φ = 33674367500.

The previous prime is 50511551231. The next prime is 50511551267. The reversal of 50511551253 is 35215511505.

50511551253 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50511551253 - 2²⁴ = 50494774037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50511551203) 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, 8418591873 + ... + 8418591878.

It is an arithmetic number, because the mean of its divisors is an integer number (16837183752).

Almost surely, 2^50511551253 is an apocalyptic number.

It is an amenable number.

50511551253 is a deficient number, since it is larger than the sum of its proper divisors (16837183755).

50511551253 is a wasteful number, since it uses less digits than its factorization.

50511551253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16837183754.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 50511551253 in words is "fifty billion, five hundred eleven million, five hundred fifty-one thousand, two hundred fifty-three".