53749872 has 80 divisors (see below), whose sum is σ = 168322560. Its totient is φ = 16286400.

The previous prime is 53749853. The next prime is 53749909. The reversal of 53749872 is 27894735.

53749872 is a `hidden beast` number, since 537 + 49 + 8 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904 + ... + 10407.

It is an arithmetic number, because the mean of its divisors is an integer number (2104032).

Almost surely, 2^53749872 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 53749872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84161280).

53749872 is an abundant number, since it is smaller than the sum of its proper divisors (114572688).

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

53749872 is a wasteful number, since it uses less digits than its factorization.

53749872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11339 (or 11327 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 53749872 is about 7331.4304197748. The cubic root of 53749872 is about 377.3918161409.

The spelling of 53749872 in words is "fifty-three million, seven hundred forty-nine thousand, eight hundred seventy-two".