53749056 has 56 divisors (see below), whose sum is σ = 142873984. Its totient is φ = 17832960.

The previous prime is 53749051. The next prime is 53749079. The reversal of 53749056 is 65094735.

It is a super-2 number, since 2×53749056² = 5777922041782272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53749051) 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, 51516 + ... + 52548.

Almost surely, 2^53749056 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 53749056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71436992).

53749056 is an abundant number, since it is smaller than the sum of its proper divisors (89124928).

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

53749056 is a wasteful number, since it uses less digits than its factorization.

53749056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 53749056 is about 7331.3747687593. The cubic root of 53749056 is about 377.3899063485.

The spelling of 53749056 in words is "fifty-three million, seven hundred forty-nine thousand, fifty-six".