252005411420 has 72 divisors (see below), whose sum is σ = 635471786880. Its totient is φ = 83614688640.

The previous prime is 252005411419. The next prime is 252005411423. The reversal of 252005411420 is 24114500252.

It is a self number, because there is not a number n which added to its sum of digits gives 252005411420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252005411423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4117175 + ... + 4177934.

It is an arithmetic number, because the mean of its divisors is an integer number (8825997040).

Almost surely, 2^252005411420 is an apocalyptic number.

252005411420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252005411420 is an abundant number, since it is smaller than the sum of its proper divisors (383466375460).

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

252005411420 is a wasteful number, since it uses less digits than its factorization.

252005411420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8295163 (or 8295154 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 252005411420 its reverse (24114500252), we get a palindrome (276119911672).

The spelling of 252005411420 in words is "two hundred fifty-two billion, five million, four hundred eleven thousand, four hundred twenty".