52421544 has 96 divisors (see below), whose sum is σ = 165784320. Its totient is φ = 14652288.

The previous prime is 52421521. The next prime is 52421549. The reversal of 52421544 is 44512425.

It is not an unprimeable number, because it can be changed into a prime (52421549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22582 + ... + 24794.

It is an arithmetic number, because the mean of its divisors is an integer number (1726920).

Almost surely, 2^52421544 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 52421544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82892160).

52421544 is an abundant number, since it is smaller than the sum of its proper divisors (113362776).

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

52421544 is a wasteful number, since it uses less digits than its factorization.

52421544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279 (or 2272 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 52421544 is about 7240.2723705673. The cubic root of 52421544 is about 374.2570035222.

Adding to 52421544 its reverse (44512425), we get a palindrome (96933969).

It can be divided in two parts, 5242 and 1544, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 52421544 in words is "fifty-two million, four hundred twenty-one thousand, five hundred forty-four".