53345544 has 64 divisors (see below), whose sum is σ = 157347840. Its totient is φ = 14748480.

The previous prime is 53345531. The next prime is 53345549. The reversal of 53345544 is 44554335.

It is not an unprimeable number, because it can be changed into a prime (53345549) 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, 87 + ... + 10329.

It is an arithmetic number, because the mean of its divisors is an integer number (2458560).

Almost surely, 2^53345544 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 53345544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78673920).

53345544 is an abundant number, since it is smaller than the sum of its proper divisors (104002296).

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

53345544 is a wasteful number, since it uses less digits than its factorization.

53345544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10290 (or 10286 counting only the distinct ones).

The product of its digits is 72000, while the sum is 33.

The square root of 53345544 is about 7303.8033927537. The cubic root of 53345544 is about 376.4431360535.

Adding to 53345544 its reverse (44554335), we get a palindrome (97899879).

It can be divided in two parts, 5334 and 5544, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 53345544 in words is "fifty-three million, three hundred forty-five thousand, five hundred forty-four".