50782766501 has 4 divisors (see below), whose sum is σ = 52021370604. Its totient is φ = 49544162400.

The previous prime is 50782766497. The next prime is 50782766527. The reversal of 50782766501 is 10566728705.

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 15598761025 + 35184005476 = 124895^2 + 187574^2 .

It is a cyclic number.

It is not a de Polignac number, because 50782766501 - 2² = 50782766497 is a prime.

It is a super-3 number, since 3×50782766501³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50782766581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619301990 + ... + 619302071.

It is an arithmetic number, because the mean of its divisors is an integer number (13005342651).

Almost surely, 2^50782766501 is an apocalyptic number.

It is an amenable number.

50782766501 is a deficient number, since it is larger than the sum of its proper divisors (1238604103).

50782766501 is a wasteful number, since it uses less digits than its factorization.

50782766501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238604102.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 50782766501 in words is "fifty billion, seven hundred eighty-two million, seven hundred sixty-six thousand, five hundred one".