53986944 has 64 divisors (see below), whose sum is σ = 156451680. Its totient is φ = 16358400.

The previous prime is 53986927. The next prime is 53986949. The reversal of 53986944 is 44968935.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 53986893 and 53986902.

It is not an unprimeable number, because it can be changed into a prime (53986949) 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, 2167 + ... + 10614.

Almost surely, 2^53986944 is an apocalyptic number.

It is an amenable number.

53986944 is an abundant number, since it is smaller than the sum of its proper divisors (102464736).

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

53986944 is a wasteful number, since it uses less digits than its factorization.

53986944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12809 (or 12797 counting only the distinct ones).

The product of its digits is 933120, while the sum is 48.

The square root of 53986944 is about 7347.5808263673. The cubic root of 53986944 is about 377.9458504220.

Subtracting from 53986944 its reverse (44968935), we obtain a square (9018009 = 3003²).

The spelling of 53986944 in words is "fifty-three million, nine hundred eighty-six thousand, nine hundred forty-four".