50551390 has 32 divisors (see below), whose sum is σ = 94556160. Its totient is φ = 19437600.

The previous prime is 50551363. The next prime is 50551393. The reversal of 50551390 is 9315505.

50551390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50551393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55035 + ... + 55945.

It is an arithmetic number, because the mean of its divisors is an integer number (2954880).

Almost surely, 2^50551390 is an apocalyptic number.

50551390 is a deficient number, since it is larger than the sum of its proper divisors (44004770).

50551390 is a wasteful number, since it uses less digits than its factorization.

50551390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128.

The product of its (nonzero) digits is 3375, while the sum is 28.

The square root of 50551390 is about 7109.9500701482. The cubic root of 50551390 is about 369.7524275162.

Adding to 50551390 its reverse (9315505), we get a palindrome (59866895).

The spelling of 50551390 in words is "fifty million, five hundred fifty-one thousand, three hundred ninety".