53503648 has 48 divisors (see below), whose sum is σ = 116169984. Its totient is φ = 24053760.

The previous prime is 53503643. The next prime is 53503669. The reversal of 53503648 is 84630535.

It is not an unprimeable number, because it can be changed into a prime (53503643) 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, 33361 + ... + 34927.

It is an arithmetic number, because the mean of its divisors is an integer number (2420208).

Almost surely, 2^53503648 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 53503648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58084992).

53503648 is an abundant number, since it is smaller than the sum of its proper divisors (62666336).

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

53503648 is a wasteful number, since it uses less digits than its factorization.

53503648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 53503648 is about 7314.6187870592. The cubic root of 53503648 is about 376.8146663903.

It can be divided in two parts, 5350 and 3648, that added together give a palindrome (8998).

The spelling of 53503648 in words is "fifty-three million, five hundred three thousand, six hundred forty-eight".