53415552 has 64 divisors (see below), whose sum is σ = 143256960. Its totient is φ = 17633280.

The previous prime is 53415539. The next prime is 53415601. The reversal of 53415552 is 25551435.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42777 + ... + 44007.

It is an arithmetic number, because the mean of its divisors is an integer number (2238390).

Almost surely, 2^53415552 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 53415552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71628480).

53415552 is an abundant number, since it is smaller than the sum of its proper divisors (89841408).

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

53415552 is a wasteful number, since it uses less digits than its factorization.

53415552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361 (or 1349 counting only the distinct ones).

The product of its digits is 15000, while the sum is 30.

The square root of 53415552 is about 7308.5943929048. The cubic root of 53415552 is about 376.6077390608.

Adding to 53415552 its reverse (25551435), we get a palindrome (78966987).

The spelling of 53415552 in words is "fifty-three million, four hundred fifteen thousand, five hundred fifty-two".