50820139292 has 24 divisors (see below), whose sum is σ = 98865981312. Its totient is φ = 22698820800.

The previous prime is 50820139283. The next prime is 50820139297. The reversal of 50820139292 is 29293102805.

It is a super-2 number, since 2×50820139292² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50820139297) 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 7 ways as a sum of consecutive naturals, for example, 15761459 + ... + 15764682.

It is an arithmetic number, because the mean of its divisors is an integer number (4119415888).

Almost surely, 2^50820139292 is an apocalyptic number.

50820139292 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

50820139292 is a deficient number, since it is larger than the sum of its proper divisors (48045842020).

50820139292 is a wasteful number, since it uses less digits than its factorization.

50820139292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31526189 (or 31526187 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 50820139292 in words is "fifty billion, eight hundred twenty million, one hundred thirty-nine thousand, two hundred ninety-two".