49991152 has 40 divisors (see below), whose sum is σ = 103118400. Its totient is φ = 23396352.

The previous prime is 49991143. The next prime is 49991159. The reversal of 49991152 is 25119994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49991159) 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, 64624 + ... + 65392.

It is an arithmetic number, because the mean of its divisors is an integer number (2577960).

Almost surely, 2^49991152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49991152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51559200).

49991152 is an abundant number, since it is smaller than the sum of its proper divisors (53127248).

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

49991152 is a wasteful number, since it uses less digits than its factorization.

49991152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033 (or 1027 counting only the distinct ones).

The product of its digits is 29160, while the sum is 40.

The square root of 49991152 is about 7070.4421361044. The cubic root of 49991152 is about 368.3814177083.

The spelling of 49991152 in words is "forty-nine million, nine hundred ninety-one thousand, one hundred fifty-two".