53312448 has 56 divisors (see below), whose sum is σ = 161210752. Its totient is φ = 15231744.

The previous prime is 53312447. The next prime is 53312453. The reversal of 53312448 is 84421335.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×53312448² = 5684434223505408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53312443) 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, 18490 + ... + 21177.

Almost surely, 2^53312448 is an apocalyptic number.

It is an amenable number.

53312448 is an abundant number, since it is smaller than the sum of its proper divisors (107898304).

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

53312448 is a wasteful number, since it uses less digits than its factorization.

53312448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39689 (or 39679 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 53312448 is about 7301.5373723621. The cubic root of 53312448 is about 376.3652705095.

The spelling of 53312448 in words is "fifty-three million, three hundred twelve thousand, four hundred forty-eight".