53557248 has 96 divisors (see below), whose sum is σ = 149385600. Its totient is φ = 17031168.

The previous prime is 53557247. The next prime is 53557249. The reversal of 53557248 is 84275535.

It is an interprime number because it is at equal distance from previous prime (53557247) and next prime (53557249).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53557247) 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, 141123 + ... + 141501.

It is an arithmetic number, because the mean of its divisors is an integer number (1556100).

Almost surely, 2^53557248 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 53557248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74692800).

53557248 is an abundant number, since it is smaller than the sum of its proper divisors (95828352).

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

53557248 is a wasteful number, since it uses less digits than its factorization.

53557248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 407 counting only the distinct ones).

The product of its digits is 168000, while the sum is 39.

The square root of 53557248 is about 7318.2817655513. The cubic root of 53557248 is about 376.9404554787.

The spelling of 53557248 in words is "fifty-three million, five hundred fifty-seven thousand, two hundred forty-eight".