50391456 has 48 divisors (see below), whose sum is σ = 132741504. Its totient is φ = 16738304.

The previous prime is 50391443. The next prime is 50391457. The reversal of 50391456 is 65419305.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (50391457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33145 + ... + 34631.

It is an arithmetic number, because the mean of its divisors is an integer number (2765448).

Almost surely, 2^50391456 is an apocalyptic number.

It is an amenable number.

50391456 is an abundant number, since it is smaller than the sum of its proper divisors (82350048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50391456 is a wasteful number, since it uses less digits than its factorization.

50391456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853 (or 1845 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 50391456 is about 7098.6939643853. The cubic root of 50391456 is about 369.3620758417.

The spelling of 50391456 in words is "fifty million, three hundred ninety-one thousand, four hundred fifty-six".