53113344 has 80 divisors (see below), whose sum is σ = 143056320. Its totient is φ = 17510400.

The previous prime is 53113339. The next prime is 53113349. The reversal of 53113344 is 44331135.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53113339) and next prime (53113349).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (53113349) 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, 231822 + ... + 232050.

It is an arithmetic number, because the mean of its divisors is an integer number (1788204).

Almost surely, 2^53113344 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 53113344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71528160).

53113344 is an abundant number, since it is smaller than the sum of its proper divisors (89942976).

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

53113344 is a wasteful number, since it uses less digits than its factorization.

53113344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 385 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 53113344 is about 7287.8902296892. The cubic root of 53113344 is about 375.8961536062.

Adding to 53113344 its reverse (44331135), we get a palindrome (97444479).

The spelling of 53113344 in words is "fifty-three million, one hundred thirteen thousand, three hundred forty-four".