50549772 has 144 divisors (see below), whose sum is σ = 156854880. Its totient is φ = 12515328.

The previous prime is 50549749. The next prime is 50549773. The reversal of 50549772 is 27794505.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 50549772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50549773) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129754 + ... + 130142.

It is an arithmetic number, because the mean of its divisors is an integer number (1089270).

Almost surely, 2^50549772 is an apocalyptic number.

50549772 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50549772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78427440).

50549772 is an abundant number, since it is smaller than the sum of its proper divisors (106305108).

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

50549772 is a wasteful number, since it uses less digits than its factorization.

50549772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 50549772 is about 7109.8362850350. The cubic root of 50549772 is about 369.7484825814.

The spelling of 50549772 in words is "fifty million, five hundred forty-nine thousand, seven hundred seventy-two".