53250048 has 144 divisors (see below), whose sum is σ = 160982640. Its totient is φ = 17584128.

The previous prime is 53250047. The next prime is 53250049. The reversal of 53250048 is 84005235.

It is an interprime number because it is at equal distance from previous prime (53250047) and next prime (53250049).

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×53250048² = 5671135224004608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (53250047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 497611 + ... + 497717.

It is an arithmetic number, because the mean of its divisors is an integer number (1117935).

Almost surely, 2^53250048 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 53250048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80491320).

53250048 is an abundant number, since it is smaller than the sum of its proper divisors (107732592).

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

53250048 is an equidigital number, since it uses as much as digits as its factorization.

53250048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 53250048 is about 7297.2630485683. The cubic root of 53250048 is about 376.2183732241.

The spelling of 53250048 in words is "fifty-three million, two hundred fifty thousand, forty-eight".