52404316420 has 72 divisors (see below), whose sum is σ = 118753608960. Its totient is φ = 19403440320.

The previous prime is 52404316381. The next prime is 52404316441. The reversal of 52404316420 is 2461340425.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 248091 + ... + 407869.

It is an arithmetic number, because the mean of its divisors is an integer number (1649355680).

Almost surely, 2^52404316420 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 52404316420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59376804480).

52404316420 is an abundant number, since it is smaller than the sum of its proper divisors (66349292540).

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

52404316420 is a wasteful number, since it uses less digits than its factorization.

52404316420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159865 (or 159840 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 52404316420 its reverse (2461340425), we get a palindrome (54865656845).

The spelling of 52404316420 in words is "fifty-two billion, four hundred four million, three hundred sixteen thousand, four hundred twenty".