53415504 has 80 divisors (see below), whose sum is σ = 155912640. Its totient is φ = 17504640.

The previous prime is 53415463. The next prime is 53415529. The reversal of 53415504 is 40551435.

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

It is a congruent number.

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, 25339 + ... + 27365.

It is an arithmetic number, because the mean of its divisors is an integer number (1948908).

Almost surely, 2^53415504 is an apocalyptic number.

53415504 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 53415504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77956320).

53415504 is an abundant number, since it is smaller than the sum of its proper divisors (102497136).

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

53415504 is a wasteful number, since it uses less digits than its factorization.

53415504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105 (or 2093 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 53415504 is about 7308.5911090989. The cubic root of 53415504 is about 376.6076262524.

Adding to 53415504 its reverse (40551435), we get a palindrome (93966939).

The spelling of 53415504 in words is "fifty-three million, four hundred fifteen thousand, five hundred four".