53105248 has 48 divisors (see below), whose sum is σ = 119992320. Its totient is φ = 22663296.

The previous prime is 53105243. The next prime is 53105257. The reversal of 53105248 is 84250135.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53105243) 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, 85483 + ... + 86101.

It is an arithmetic number, because the mean of its divisors is an integer number (2499840).

Almost surely, 2^53105248 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 53105248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59996160).

53105248 is an abundant number, since it is smaller than the sum of its proper divisors (66887072).

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

53105248 is a wasteful number, since it uses less digits than its factorization.

53105248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 53105248 is about 7287.3347665659. The cubic root of 53105248 is about 375.8770535102.

The spelling of 53105248 in words is "fifty-three million, one hundred five thousand, two hundred forty-eight".