52425440040 has 128 divisors (see below), whose sum is σ = 161333884800. Its totient is φ = 13621063680.

The previous prime is 52425440033. The next prime is 52425440047. The reversal of 52425440040 is 4004452425.

It is an interprime number because it is at equal distance from previous prime (52425440033) and next prime (52425440047).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (52425440047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2098020 + ... + 2122860.

It is an arithmetic number, because the mean of its divisors is an integer number (1260420975).

Almost surely, 2^52425440040 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 52425440040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80666942400).

52425440040 is an abundant number, since it is smaller than the sum of its proper divisors (108908444760).

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

52425440040 is a wasteful number, since it uses less digits than its factorization.

52425440040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25307 (or 25303 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 52425440040 its reverse (4004452425), we get a palindrome (56429892465).

The spelling of 52425440040 in words is "fifty-two billion, four hundred twenty-five million, four hundred forty thousand, forty".