50821375 has 32 divisors (see below), whose sum is σ = 72244224. Its totient is φ = 35332000.

The previous prime is 50821349. The next prime is 50821391. The reversal of 50821375 is 57312805.

It is not a de Polignac number, because 50821375 - 2⁵ = 50821343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30822 + ... + 32428.

It is an arithmetic number, because the mean of its divisors is an integer number (2257632).

Almost surely, 2^50821375 is an apocalyptic number.

50821375 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

50821375 is a deficient number, since it is larger than the sum of its proper divisors (21422849).

50821375 is a wasteful number, since it uses less digits than its factorization.

50821375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 50821375 is about 7128.9112071901. The cubic root of 50821375 is about 370.4095173591.

The spelling of 50821375 in words is "fifty million, eight hundred twenty-one thousand, three hundred seventy-five".