50807665253 has 4 divisors (see below), whose sum is σ = 52559653740. Its totient is φ = 49055676768.

The previous prime is 50807665243. The next prime is 50807665277. The reversal of 50807665253 is 35256670805.

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 12781885249 + 38025780004 = 113057^2 + 195002^2 .

It is a cyclic number.

It is not a de Polignac number, because 50807665253 - 2⁸ = 50807664997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50807665198 and 50807665207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50807665243) 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, 875994200 + ... + 875994257.

It is an arithmetic number, because the mean of its divisors is an integer number (13139913435).

Almost surely, 2^50807665253 is an apocalyptic number.

It is an amenable number.

50807665253 is a deficient number, since it is larger than the sum of its proper divisors (1751988487).

50807665253 is a wasteful number, since it uses less digits than its factorization.

50807665253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751988486.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 50807665253 in words is "fifty billion, eight hundred seven million, six hundred sixty-five thousand, two hundred fifty-three".