252424200540 has 24 divisors (see below), whose sum is σ = 706787761680. Its totient is φ = 67313120128.

The previous prime is 252424200529. The next prime is 252424200547. The reversal of 252424200540 is 45002424252.

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

It is a junction number, because it is equal to n+sod(n) for n = 252424200498 and 252424200507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252424200547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2103534945 + ... + 2103535064.

It is an arithmetic number, because the mean of its divisors is an integer number (29449490070).

Almost surely, 2^252424200540 is an apocalyptic number.

252424200540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252424200540 is an abundant number, since it is smaller than the sum of its proper divisors (454363561140).

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

252424200540 is a wasteful number, since it uses less digits than its factorization.

252424200540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207070021 (or 4207070019 counting only the distinct ones).

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

Adding to 252424200540 its reverse (45002424252), we get a palindrome (297426624792).

The spelling of 252424200540 in words is "two hundred fifty-two billion, four hundred twenty-four million, two hundred thousand, five hundred forty".