52263144 has 80 divisors (see below), whose sum is σ = 148975200. Its totient is φ = 17113248.

The previous prime is 52263137. The next prime is 52263181. The reversal of 52263144 is 44136225.

52263144 is a `hidden beast` number, since 5 + 22 + 631 + 4 + 4 = 666.

It is a super-3 number, since 3×52263144³ (a number of 24 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37549 + ... + 38915.

It is an arithmetic number, because the mean of its divisors is an integer number (1862190).

Almost surely, 2^52263144 is an apocalyptic number.

52263144 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 52263144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74487600).

52263144 is an abundant number, since it is smaller than the sum of its proper divisors (96712056).

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

52263144 is a wasteful number, since it uses less digits than its factorization.

52263144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444 (or 1431 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 52263144 is about 7229.3252797201. The cubic root of 52263144 is about 373.8796642607.

Adding to 52263144 its reverse (44136225), we get a palindrome (96399369).

The spelling of 52263144 in words is "fifty-two million, two hundred sixty-three thousand, one hundred forty-four".