50221755 has 16 divisors (see below), whose sum is σ = 89283360. Its totient is φ = 26784864.

The previous prime is 50221753. The next prime is 50221771. The reversal of 50221755 is 55712205.

It is a happy number.

It is not a de Polignac number, because 50221755 - 2¹ = 50221753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (50221751) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 185872 + ... + 186141.

It is an arithmetic number, because the mean of its divisors is an integer number (5580210).

Almost surely, 2^50221755 is an apocalyptic number.

50221755 is a deficient number, since it is larger than the sum of its proper divisors (39061605).

50221755 is a wasteful number, since it uses less digits than its factorization.

50221755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372027 (or 372021 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 50221755 is about 7086.7309106527. The cubic root of 50221755 is about 368.9469816086.

The spelling of 50221755 in words is "fifty million, two hundred twenty-one thousand, seven hundred fifty-five".