53663472 has 100 divisors (see below), whose sum is σ = 158802336. Its totient is φ = 17487360.

The previous prime is 53663453. The next prime is 53663473. The reversal of 53663472 is 27436635.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53663473) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 60472 + ... + 61352.

Almost surely, 2^53663472 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 53663472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79401168).

53663472 is an abundant number, since it is smaller than the sum of its proper divisors (105138864).

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

53663472 is a wasteful number, since it uses less digits than its factorization.

53663472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948 (or 933 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 53663472 is about 7325.5356118171. The cubic root of 53663472 is about 377.1894954130.

The spelling of 53663472 in words is "fifty-three million, six hundred sixty-three thousand, four hundred seventy-two".