53561152 has 56 divisors (see below), whose sum is σ = 118506240. Its totient is φ = 23869440.

The previous prime is 53561143. The next prime is 53561159. The reversal of 53561152 is 25116535.

It is a self number, because there is not a number n which added to its sum of digits gives 53561152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53561159) 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, 19377 + ... + 21967.

Almost surely, 2^53561152 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 53561152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59253120).

53561152 is an abundant number, since it is smaller than the sum of its proper divisors (64945088).

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

53561152 is a wasteful number, since it uses less digits than its factorization.

53561152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639 (or 2629 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 53561152 is about 7318.5484899671. The cubic root of 53561152 is about 376.9496141506.

Adding to 53561152 its reverse (25116535), we get a palindrome (78677687).

The spelling of 53561152 in words is "fifty-three million, five hundred sixty-one thousand, one hundred fifty-two".