52432542 has 64 divisors (see below), whose sum is σ = 121052160. Its totient is φ = 16811712.

The previous prime is 52432519. The next prime is 52432547. The reversal of 52432542 is 24523425.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52432547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185133 + ... + 185415.

It is an arithmetic number, because the mean of its divisors is an integer number (1891440).

Almost surely, 2^52432542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52432542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60526080).

52432542 is an abundant number, since it is smaller than the sum of its proper divisors (68619618).

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

52432542 is a wasteful number, since it uses less digits than its factorization.

52432542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 408 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 52432542 is about 7241.0318325498. The cubic root of 52432542 is about 374.2831746368.

Adding to 52432542 its reverse (24523425), we get a palindrome (76955967).

The spelling of 52432542 in words is "fifty-two million, four hundred thirty-two thousand, five hundred forty-two".