53253504 has 128 divisors (see below), whose sum is σ = 165648000. Its totient is φ = 16796160.

The previous prime is 53253493. The next prime is 53253509. The reversal of 53253504 is 40535235.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53253509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65259 + ... + 66069.

It is an arithmetic number, because the mean of its divisors is an integer number (1294125).

Almost surely, 2^53253504 is an apocalyptic number.

53253504 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53253504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82824000).

53253504 is an abundant number, since it is smaller than the sum of its proper divisors (112394496).

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

53253504 is a wasteful number, since it uses less digits than its factorization.

53253504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 53253504 is about 7297.4998458376. The cubic root of 53253504 is about 376.2265120748.

Adding to 53253504 its reverse (40535235), we get a palindrome (93788739).

The spelling of 53253504 in words is "fifty-three million, two hundred fifty-three thousand, five hundred four".