53908224 has 72 divisors (see below), whose sum is σ = 151950960. Its totient is φ = 16908288.

The previous prime is 53908219. The next prime is 53908229. The reversal of 53908224 is 42280935.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53908219) and next prime (53908229).

It is a super-2 number, since 2×53908224² = 5812193229668352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53908229) 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, 10992 + ... + 15120.

It is an arithmetic number, because the mean of its divisors is an integer number (2110430).

Almost surely, 2^53908224 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 53908224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75975480).

53908224 is an abundant number, since it is smaller than the sum of its proper divisors (98042736).

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

53908224 is a wasteful number, since it uses less digits than its factorization.

53908224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4165 (or 4151 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 53908224 is about 7342.2220069949. Note that the first 3 decimals coincide. The cubic root of 53908224 is about 377.7620629629.

The spelling of 53908224 in words is "fifty-three million, nine hundred eight thousand, two hundred twenty-four".