53504164 has 48 divisors (see below), whose sum is σ = 112444416. Its totient is φ = 21780000.

The previous prime is 53504149. The next prime is 53504177. The reversal of 53504164 is 46140535.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161479 + ... + 161809.

It is an arithmetic number, because the mean of its divisors is an integer number (2342592).

Almost surely, 2^53504164 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 53504164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56222208).

53504164 is an abundant number, since it is smaller than the sum of its proper divisors (58940252).

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

53504164 is a wasteful number, since it uses less digits than its factorization.

53504164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 614 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 53504164 is about 7314.6540588055. The cubic root of 53504164 is about 376.8158777453.

Adding to 53504164 its reverse (46140535), we get a palindrome (99644699).

The spelling of 53504164 in words is "fifty-three million, five hundred four thousand, one hundred sixty-four".