52452402324520 has 128 divisors (see below), whose sum is σ = 130922190915840. Its totient is φ = 18752970147840.

The previous prime is 52452402324493. The next prime is 52452402324527. The reversal of 52452402324520 is 2542320425425.

52452402324520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×52452402324520² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (52452402324527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7606309 + ... + 12757771.

It is an arithmetic number, because the mean of its divisors is an integer number (1022829616530).

Almost surely, 2^{52452402324520} 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 52452402324520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65461095457920).

52452402324520 is an abundant number, since it is smaller than the sum of its proper divisors (78469788591320).

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

52452402324520 is a wasteful number, since it uses less digits than its factorization.

52452402324520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5151875 (or 5151871 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 40.

Adding to 52452402324520 its reverse (2542320425425), we get a palindrome (54994722749945).

The spelling of 52452402324520 in words is "fifty-two trillion, four hundred fifty-two billion, four hundred two million, three hundred twenty-four thousand, five hundred twenty".