53644992 has 56 divisors (see below), whose sum is σ = 142597632. Its totient is φ = 17798400.

The previous prime is 53644991. The next prime is 53645003. The reversal of 53644992 is 29944635.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53644991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51517 + ... + 52547.

Almost surely, 2^53644992 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 53644992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71298816).

53644992 is an abundant number, since it is smaller than the sum of its proper divisors (88952640).

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

53644992 is a wasteful number, since it uses less digits than its factorization.

53644992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317 (or 1307 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 53644992 is about 7324.2741619904. The cubic root of 53644992 is about 377.1461930703.

The spelling of 53644992 in words is "fifty-three million, six hundred forty-four thousand, nine hundred ninety-two".